{"title":"Wilo","description":"","products":[{"product_id":"automated-manifold-mixing-valve-with-wilo-circulation-pump-for-underfloor-heating","title":"UFH Mixing Valve Pump Set with Wilo Yonos PICO","description":"\u003cdiv style=\"font-size: 16px; font-family: Arial,Helvetica,sans-serif; color: #222; max-width: 900px; margin: 0 auto; line-height: 1.6;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eUFH Mixing Valve \/ Pump Set with Wilo PICO 25\/1-6 130 \/ Para 25\/6-43\/SCU\u003c\/strong\u003e is a complete, installer-ready solution for controlling water temperature in wet underfloor heating systems. Comprising a \u003cstrong\u003e1\" thermostatic blending valve\u003c\/strong\u003e, the market-leading \u003cstrong\u003eWilo Para 25\/6-43\/SCU 'A'-rated circulating pump\u003c\/strong\u003e, and an \u003cstrong\u003eintegrated temperature controller with sensor\u003c\/strong\u003e, it delivers precise, stable supply temperatures to your UFH manifold. Suitable for systems up to \u003cstrong\u003e250 m²\u003c\/strong\u003e or \u003cstrong\u003e20 kW output\u003c\/strong\u003e, the unit is engineered for manifold installation with a \u003cstrong\u003elightweight, wall-mountable design\u003c\/strong\u003e and a dedicated air-vent port. Also available separately: the \u003cstrong\u003eHoneywell V4043H motorised 2-port zone valve\u003c\/strong\u003e (22 mm or 28 mm) — the UK installer standard for zone-level flow control.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 6px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e250 m²\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px;\"\u003eMax floor area\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 6px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e20 kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px;\"\u003eMax heat output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 6px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e35–60 °C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px;\"\u003eTemp control range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 6px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e±1 °C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px;\"\u003eTemp accuracy\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 6px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003eEEI ≤0.21\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px;\"\u003eWilo pump rating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 6px; padding: 14px 10px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e6 m\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px;\"\u003eMax pump head\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff5f5; border-left: 4px solid #c0392b; border-radius: 4px; padding: 14px 16px; margin: 16px 0;\"\u003e\n\u003cstrong style=\"color: #c0392b;\"\u003eInstallation Requirement:\u003c\/strong\u003e This pump set must be installed by a suitably qualified heating engineer. All electrical connections must comply with current IEE Wiring Regulations. Ensure a fused isolator with minimum 3 mm contact separation is fitted before the zone valve.\u003c\/div\u003e\n\u003cdiv style=\"background: #fffbf0; border-left: 4px solid #e67e22; border-radius: 4px; padding: 14px 16px; margin: 16px 0;\"\u003e\n\u003cstrong style=\"color: #e67e22;\"\u003eCompatibility Note:\u003c\/strong\u003e The mixing unit uses a \u003cstrong\u003e1\" (G 1½\") connection\u003c\/strong\u003e — verify manifold port sizing before ordering. The Honeywell V4043H valve must not be mounted with the powerhead below the horizontal level of the pipework, and must not block any vent or cold feed when in the closed position.\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; border-radius: 4px; padding: 14px 16px; margin: 16px 0;\"\u003e\n\u003cstrong style=\"color: #005c54;\"\u003eComplete UFH Control Solution:\u003c\/strong\u003e Together, the mixing unit and Honeywell zone valve provide \u003cstrong\u003eprecise temperature blending at the manifold\u003c\/strong\u003e and \u003cstrong\u003eon\/off zone control\u003c\/strong\u003e at the circuit level — the two fundamental layers of control needed for a properly designed wet UFH system.\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; margin: 28px 0 16px;\"\u003e\u003cstrong\u003eMixing Valve \/ Pump Set — Key Features\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003eWilo Para 25\/6-43\/SCU — 'A'-Rated Pump\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe \u003cstrong\u003eWilo Para 25\/6-43\/SCU\u003c\/strong\u003e is a high-efficiency, glandless Class A circulator with an \u003cstrong\u003eintegrated differential pressure control\u003c\/strong\u003e and \u003cstrong\u003eGreen Button self-controlled technology\u003c\/strong\u003e that automatically adjusts pump speed to match system demand — no external controller needed. It delivers \u003cstrong\u003e3× higher starting torque\u003c\/strong\u003e than comparable heating pumps, making it exceptionally reliable in systems with residual scale or after periods of inactivity. The \u003cstrong\u003e130 mm port-to-port length and G 1½\" connections\u003c\/strong\u003e fit the mixing unit directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003eThermostatic Blending Valve\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eA \u003cstrong\u003eprecision brass (HPB57-3) 1\" blending valve\u003c\/strong\u003e with a manual mixing core and thermosensitive element regulates the hot\/cold ratio, delivering a \u003cstrong\u003estable supply temperature to ±1 °C\u003c\/strong\u003e across the full \u003cstrong\u003e35–60 °C\u003c\/strong\u003e operating range. Rated to \u003cstrong\u003e10 bar\u003c\/strong\u003e and \u003cstrong\u003e100 °C\u003c\/strong\u003e, it is compatible with all standard boilers and heat pumps and sized to support systems up to \u003cstrong\u003e250 m² \/ 20 kW\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003eIntegrated Temperature Controller \u0026amp; Sensor\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe \u003cstrong\u003ebuilt-in temperature controller and dedicated sensor\u003c\/strong\u003e monitor the mixed supply water in real time, trimming the valve position to hold the setpoint precisely. This prevents thermal overshoot — critical for protecting timber and engineered-wood finishes — and reduces energy waste by ensuring the manifold never receives hotter water than needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003ePressure \u0026amp; Temperature Gauges Included\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eBoth \u003cstrong\u003epressure and temperature gauges are fitted as standard\u003c\/strong\u003e, giving an at-a-glance view of system status during commissioning and day-to-day operation. The unit also includes a \u003cstrong\u003ededicated air-vent port\u003c\/strong\u003e for straightforward bleeding during fill-up — no separate instruments needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003eWhy a 1\" Blending Valve?\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eA \u003cstrong\u003e1\" bore handles significantly higher flow rates\u003c\/strong\u003e than a ¾\" valve, suits multi-zone and larger floor areas, and its \u003cstrong\u003ewider internal diameter minimises friction loss and pressure drop\u003c\/strong\u003e — allowing the Wilo Para to run at lower speed, saving energy and reducing noise. The more robust brass construction also delivers \u003cstrong\u003elonger service life under continuous duty\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003eWall-Mountable, Manifold-Ready Design\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe complete mixing unit is engineered specifically for \u003cstrong\u003emanifold installation\u003c\/strong\u003e with a \u003cstrong\u003elightweight, wall-mountable bracket\u003c\/strong\u003e for a tidy fit in plant rooms and airing cupboards. The \u003cstrong\u003eG 1½\" connections\u003c\/strong\u003e on both pump and blending valve match standard UFH manifold ports for a direct, no-adapter installation. A \u003cstrong\u003e5-year blending valve guarantee and 2-year pump guarantee\u003c\/strong\u003e underpin long-term confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 2-PORT VALVE SECTION --\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; margin: 28px 0 16px;\"\u003e\u003cstrong\u003eHoneywell V4043H Motorised 2-Port Zone Valve\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell V4043H\u003c\/strong\u003e is the installer-standard choice for zone control in domestic and light commercial underfloor heating systems. Available in \u003cstrong\u003e22 mm (HW2P-22)\u003c\/strong\u003e and \u003cstrong\u003e28 mm (HW2P-28)\u003c\/strong\u003e compression, it operates on a \u003cstrong\u003emotor-open, spring-return\u003c\/strong\u003e principle — defaulting closed on power loss for inherent system protection. Key features include a \u003cstrong\u003epotential-free SPST end switch\u003c\/strong\u003e to signal the boiler or pump, a \u003cstrong\u003emanual lever\u003c\/strong\u003e for filling and draining without power, and a \u003cstrong\u003ereplaceable powerhead\u003c\/strong\u003e that can be swapped without draining the system.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003eMotor-Open, Spring-Return\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe valve \u003cstrong\u003eopens under electrical power and closes automatically by spring return\u003c\/strong\u003e when de-energised. This \u003cstrong\u003enormally-closed, fail-safe design\u003c\/strong\u003e prevents unintended flow if power is lost, and ensures a clean shut-off whenever the zone thermostat is satisfied.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003ePotential-Free End Switch\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe \u003cstrong\u003eSPST potential-free end switch\u003c\/strong\u003e directly signals the boiler or circulating pump, firing the heat source only when a zone is genuinely calling — \u003cstrong\u003esaving fuel and reducing wear\u003c\/strong\u003e. The \u003cstrong\u003e1 m heat-resistant flying lead\u003c\/strong\u003e wires cleanly into standard wiring centres and programmers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003ePowerhead Replaceable Without Drain-Down\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eThe \u003cstrong\u003epowerhead can be removed and replaced in-situ without draining the system\u003c\/strong\u003e — a major time-saver on service calls. The \u003cstrong\u003eintegrated manual lever\u003c\/strong\u003e holds the valve open during filling, venting, or draining at commissioning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 240px; background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 16px;\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 15px; border-bottom: 2px solid #008377; padding-bottom: 6px; margin-bottom: 10px;\"\u003eFast, Quiet Operation\u003c\/div\u003e\n\u003cp style=\"margin: 0;\"\u003eOpening time is \u003cstrong\u003eapproximately 12 seconds\u003c\/strong\u003e under power; spring return takes around \u003cstrong\u003e6 seconds\u003c\/strong\u003e — fast enough to respond promptly to zone demand without water hammer. \u003cstrong\u003eLow 6 W power consumption\u003c\/strong\u003e and a quiet synchronous motor mean no audible disturbance in occupied spaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- MIXING UNIT SPEC TABLE --\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; margin: 28px 0 16px;\"\u003e\u003cstrong\u003eMixing Unit — Technical Specifications\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6; width: 46%;\"\u003e\u003cstrong\u003eBlending valve body material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eBrass (HPB57-3)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eMax working pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e10 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eMax media temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e100 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eTemperature control range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e35–60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eTemperature control accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e±1 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eBlending valve connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e1\" (ISO 228 \/ G 1½\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003ePump connection thread\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eG 1½\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eMax system floor area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e250 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eMax heat output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e20 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003ePump power supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e230 V, 50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eBlending valve guarantee\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px;\"\u003e\u003cstrong\u003ePump guarantee\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px;\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- WILO PUMP SPEC TABLE --\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; margin: 28px 0 16px;\"\u003e\u003cstrong\u003eWilo Para 25\/6-43\/SCU — Technical Specifications\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6; width: 46%;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eWilo Para 25\/6-43\/SCU \/ PICO 25\/1-6 130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eEnergy rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eClass A, ErP-compliant (EEI ≤ 0.21)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eMax head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e6 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003ePower supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e230 V, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003ePort-to-port length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003ePipe connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eG 1½\" (1.5\" BSP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eMax operating pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e10 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eControl modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eDifferential pressure proportional (Δp-v), differential pressure constant (Δp-c), 3× fixed speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eMotor type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eEC (electronically commutated), glandless, maintenance-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eStarting torque\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e3× higher than comparable heating pumps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eSelf-controlled button\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eYes (Green Button technology)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eDifferential pressure control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eIntegrated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e2.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px;\"\u003e\u003cstrong\u003eCompatible replacements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px;\"\u003eWilo Gold Star, RS25\/6, RS25\/5, RS25-50, RS25-60, Yonos Pico 25\/1-6-130, Yonos Pico 25\/1-5-130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- HONEYWELL SPEC TABLE --\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; margin: 28px 0 16px;\"\u003e\u003cstrong\u003eHoneywell V4043H — Technical Specifications\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6; width: 46%;\"\u003e\u003cstrong\u003eValve type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e2-port, normally closed, motor-open, spring-return\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eConnections available\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e22 mm compression (HW2P-22) \/ 28 mm compression (HW2P-28)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003ePower supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e230 V AC, 50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003ePower consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e6 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eEnd switch type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003eSPST potential-free (22 mm) \/ SPDT (28 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eSwitch rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e2.2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eOpening time (nominal)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e~12 seconds (under power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eClosing time (nominal)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e~6 seconds (spring return)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eMax static pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e8.6 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eMax differential pressure (close-off)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e0.55 bar (22 mm) \/ 0.45 bar (28 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eFlow temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e5–88 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eAmbient temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e5–50 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e\u003cstrong\u003eKv (flow coefficient)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border-bottom: 1px solid #d0e8e6;\"\u003e6.9 (22 mm) \/ 8.6 (28 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px;\"\u003e\u003cstrong\u003eCable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px;\"\u003e1 m heat-resistant flying lead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; margin: 28px 0 16px;\"\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat floor area and heat output can this mixing set support?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; background: #f9fefe;\"\u003eThe mixing unit is rated for systems up to \u003cstrong\u003e250 m²\u003c\/strong\u003e of floor area or \u003cstrong\u003e20 kW\u003c\/strong\u003e of heat output. The Wilo Para 25\/6 delivers a \u003cstrong\u003emax head of 6 m\u003c\/strong\u003e, which is sufficient for the vast majority of domestic UFH manifold layouts within those limits.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat makes the Wilo Para 25\/6 energy efficient?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; background: #f9fefe;\"\u003eThe Wilo Para uses an \u003cstrong\u003eEC (electronically commutated) glandless motor\u003c\/strong\u003e with \u003cstrong\u003eintegrated differential pressure control\u003c\/strong\u003e, automatically adjusting speed to match system demand at any given moment. Its \u003cstrong\u003eEEI ≤ 0.21\u003c\/strong\u003e meets the ErP Class A benchmark, delivering major savings versus older fixed-speed pumps. The \u003cstrong\u003eGreen Button self-controlled technology\u003c\/strong\u003e means the pump can optimise itself without any external controller input.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eIs the Wilo Para a direct replacement for older Wilo pumps?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; background: #f9fefe;\"\u003eYes. The Wilo Para 25\/6-43\/SCU is a \u003cstrong\u003edirect drop-in replacement\u003c\/strong\u003e for a wide range of older Wilo models including the \u003cstrong\u003eGold Star, RS25\/6, RS25\/5, RS25-50, RS25-60, Yonos Pico 25\/1-6-130, and Yonos Pico 25\/1-5-130\u003c\/strong\u003e — all sharing the same 130 mm port-to-port length and G 1½\" connections. It also offers \u003cstrong\u003e3× higher starting torque\u003c\/strong\u003e than comparable heating pumps, making it particularly reliable in systems with residual scale or where the pump has been idle.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat temperature does the blending valve control to, and how accurately?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; background: #f9fefe;\"\u003eThe thermostatic blending valve controls supply water temperature between \u003cstrong\u003e35 °C and 60 °C\u003c\/strong\u003e with an accuracy of \u003cstrong\u003e±1 °C\u003c\/strong\u003e. This range covers all standard UFH applications — from low-temperature heat pump outputs (~35–45 °C) to higher-temperature boiler systems — and the integrated sensor and controller continuously adjust the valve to maintain the setpoint.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eDo I need a 2-port zone valve, and which size should I choose?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; background: #f9fefe;\"\u003eA \u003cstrong\u003e2-port motorised zone valve\u003c\/strong\u003e is needed for each independently controlled heating zone. The \u003cstrong\u003eHoneywell V4043H 22 mm\u003c\/strong\u003e suits most domestic pipework and is the standard choice for UFH systems. The \u003cstrong\u003e28 mm version\u003c\/strong\u003e is used where higher flow rates are required — typically larger domestic or light commercial systems. Both feature a potential-free end switch to fire the boiler or pump only when that zone calls for heat.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eCan the Honeywell V4043H powerhead be serviced without draining down?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; background: #f9fefe;\"\u003eYes. The \u003cstrong\u003eV4043H powerhead is designed to be removed and replaced in-situ without draining the system\u003c\/strong\u003e. The \u003cstrong\u003emanual lever\u003c\/strong\u003e allows the valve to be held open during initial fill-up and system venting, and can also be used to isolate a zone manually if needed during maintenance — a significant time-saver on service visits.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Wilo","offers":[{"title":"Default Title","offer_id":62540173476189,"sku":"WILO-T4-210-Kit","price":195.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/UFHthermostaticblendingvalveforpumpsetgrundfos.webp?v=1778854192"},{"product_id":"wilo-yonos-pico-15-1-4-130-high-efficiency-circulator-pump-130mm-230v-for-heating-amp-hot-water-systems","title":"Wilo Yonos PICO 15\/1-4-130 High-Efficiency Circulator Pump - 130mm, 230V, for Heating and Hot Water Systems","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eWilo Yonos PICO 15\/1-4-130 High-Efficiency Circulation Pump 4215511\u003c\/strong\u003e is a glandless, electronically controlled pump designed for hot-water heating systems, air-conditioning, and industrial circulation applications, featuring ECM technology for energy savings and reliable performance.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Wilo Yonos PICO 15\/1-4-130 is a maintenance-free circulation pump with a wet motor, threaded connection, and integrated electronic power control. It offers preselectable control modes for constant or variable differential pressure, making it suitable for underfloor heating, radiator systems, and similar applications. The compact 130 mm port-to-port length allows for flexible installation in space-constrained areas. With a minimum power consumption of just 4 W and high starting torque, it ensures efficient and reliable operation while reducing energy costs.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency ECM motor:\u003c\/strong\u003e Achieves very high degrees of efficiency with minimum power consumption of 4 W.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl modes:\u003c\/strong\u003e Δp-c (constant differential pressure) and Δp-v (variable differential pressure) for optimized performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated functions:\u003c\/strong\u003e Motor protection, LED display for setpoint and power consumption, automatic deblocking, and venting function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick connection:\u003c\/strong\u003e Wilo-Connector for easy electrical installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact design:\u003c\/strong\u003e 130 mm port-to-port length for flexible mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Efficiency Index (EEI):\u003c\/strong\u003e ≤ 0.20 for superior energy savings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh starting torque:\u003c\/strong\u003e Ensures reliable startup even after long downtimes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Yonos PICO 15\/1-4-130.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid temperature range:\u003c\/strong\u003e -10°C to +95°C (up to +110°C at reduced ambient temperature).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMains connection:\u003c\/strong\u003e 1~230 V, 50\/60 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection class:\u003c\/strong\u003e IP X2D.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreaded connection:\u003c\/strong\u003e Rp ½ (G 1).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. operating pressure:\u003c\/strong\u003e 6 bar (10 bar in some sources).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower consumption:\u003c\/strong\u003e 4–20 W.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed range:\u003c\/strong\u003e 800–3600 rpm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. head:\u003c\/strong\u003e 4.3 m.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. flow:\u003c\/strong\u003e 2.7 m³\/h.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum suction head (at 50°C):\u003c\/strong\u003e 0.5 m.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Grey cast iron pump housing, plastic impeller (PP-40% GF), stainless steel shaft, carbon bearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermitted fluids:\u003c\/strong\u003e Heating water (VDI 2035), water-glycol mixtures (max 1:1).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation class:\u003c\/strong\u003e F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectromagnetic compatibility:\u003c\/strong\u003e EN 61800-3.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort-to-port length:\u003c\/strong\u003e 130 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 78 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 81 mm (total).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 106 mm (total).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 2 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for single and two-family houses, underfloor heating, radiator systems, air-conditioning, and industrial circulation.\u003c\/li\u003e\n\u003cli\u003eCompatible with heating water and water-glycol mixtures; check pumping data for mixtures above 20%.\u003c\/li\u003e\n\u003cli\u003eInstallation: Flexible due to compact design; use Wilo-Connector for quick wiring.\u003c\/li\u003e\n\u003cli\u003eAccessories available: Screwed connections, adapter fittings, thermal insulation.\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended; ensure proper venting and deblocking for optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Wilo","offers":[{"title":"Default Title","offer_id":63399572341085,"sku":"4215511","price":170.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/wilo-yonos-pico-4215511.jpg?v=1770901578"},{"product_id":"wilo-yonos-pico-25-1-4-130-high-efficiency-circulator-pump-130mm-230v-for-heating-hot-water-systems","title":"Wilo Yonos PICO 25\/1-4-130 High-Efficiency Circulator Pump - 130mm, 230V, for Heating \u0026 Hot Water Systems","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eWilo Yonos PICO 25\/1-4-130 High-Efficiency Circulation Pump 4215514\u003c\/strong\u003e is a glandless, electronically controlled pump designed for hot-water heating systems, air-conditioning, and industrial circulation applications, featuring ECM technology for energy savings and reliable performance.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Wilo Yonos PICO 25\/1-4-130 is a maintenance-free circulation pump with a wet motor, threaded connection, and integrated electronic power control. It offers preselectable control modes for constant or variable differential pressure, making it suitable for underfloor heating, radiator systems, and similar applications. The compact 130 mm port-to-port length allows for flexible installation in space-constrained areas. With a minimum power consumption of just 4 W and high starting torque, it ensures efficient and reliable operation while reducing energy costs.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency ECM motor:\u003c\/strong\u003e Achieves very high degrees of efficiency with minimum power consumption of 4 W.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl modes:\u003c\/strong\u003e Δp-c (constant differential pressure) and Δp-v (variable differential pressure) for optimized performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated functions:\u003c\/strong\u003e Motor protection, LED display for setpoint and power consumption, automatic deblocking, and venting function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick connection:\u003c\/strong\u003e Wilo-Connector for easy electrical installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact design:\u003c\/strong\u003e 130 mm port-to-port length for flexible mounting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Efficiency Index (EEI):\u003c\/strong\u003e ≤ 0.20 for superior energy savings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh starting torque:\u003c\/strong\u003e Ensures reliable startup even after long downtimes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Yonos PICO 25\/1-4-130.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid temperature range:\u003c\/strong\u003e -10°C to +95°C (up to +110°C at reduced ambient temperature).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMains connection:\u003c\/strong\u003e 1~230 V, 50\/60 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection class:\u003c\/strong\u003e IP X2D.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreaded connection:\u003c\/strong\u003e Rp 1 (G 1 1\/2).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. operating pressure:\u003c\/strong\u003e 10 bar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower consumption:\u003c\/strong\u003e 4–20 W.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed range:\u003c\/strong\u003e 800–3600 rpm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. head:\u003c\/strong\u003e 4 m.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. flow:\u003c\/strong\u003e 2.7 m³\/h.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum suction head (at 50°C):\u003c\/strong\u003e 0.5 m.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Grey cast iron pump housing, plastic impeller (PP-40% GF), stainless steel shaft, carbon bearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermitted fluids:\u003c\/strong\u003e Heating water (VDI 2035), water-glycol mixtures (max 1:1).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation class:\u003c\/strong\u003e F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectromagnetic compatibility:\u003c\/strong\u003e EN 61800-3.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort-to-port length:\u003c\/strong\u003e 130 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 78 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 81 mm (total).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 106 mm (total).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 2 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for single and two-family houses, underfloor heating, radiator systems, air-conditioning, and industrial circulation.\u003c\/li\u003e\n\u003cli\u003eCompatible with heating water and water-glycol mixtures; check pumping data for mixtures above 20%.\u003c\/li\u003e\n\u003cli\u003eInstallation: Flexible due to compact design; use Wilo-Connector for quick wiring.\u003c\/li\u003e\n\u003cli\u003eAccessories available: Screwed connections, adapter fittings, thermal insulation.\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended; ensure proper venting and deblocking for optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Wilo","offers":[{"title":"Default Title","offer_id":63400354546013,"sku":"4215514","price":545.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/wilo-yonos-pico-4215511.jpg?v=1770901578"},{"product_id":"wilo-para-high-efficiency-circulator-pump-for-underfloor-heating","title":"Wilo Para High-Efficiency Circulator Pump for Underfloor Heating 25\/6 SC","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eWilo Para High-Efficiency Circulator Pump for Underfloor Heating 25\/6 SC Model\u003c\/strong\u003e is a glandless electronic pump designed for hot water heating systems, including UFH, featuring self-controlled modes for energy savings and reliable performance.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Wilo Para is a high-efficiency circulator series dedicated to heating and air-conditioning applications, with a compact design and predefined standard settings. It features a cast iron pump housing, threaded connection, and self-controlled modes (Δp-v, Δp-c, constant speed). Recommended for underfloor heating, it adjusts performance to system demands, reducing energy consumption. The pump is suitable for clean water or water-glycol mixtures, with IPX4D protection and integrated motor protection.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-controlled modes:\u003c\/strong\u003e Δp-v, Δp-c, constant speed I, II, III for optimized operation in UFH and heating systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy efficient:\u003c\/strong\u003e EEI ≤ 0.21, low power consumption (3-43 W for 25\/6 model).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact design:\u003c\/strong\u003e 130 mm or 180 mm port-to-port length for easy replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection:\u003c\/strong\u003e IPX4D, integrated motor protection, self-venting and deblocking functions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet operation:\u003c\/strong\u003e Suitable for residential use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide temperature range:\u003c\/strong\u003e Fluid -10°C to +95°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Para 25\/6 SC (common for UFH).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax head:\u003c\/strong\u003e 6.7 m.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax flow:\u003c\/strong\u003e 3.3 m³\/h.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFluid temperature range:\u003c\/strong\u003e -10°C to +95°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient temperature:\u003c\/strong\u003e -10°C to +70°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax operating pressure:\u003c\/strong\u003e 10 bar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e 1~230 V, 50-60 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower input:\u003c\/strong\u003e 3-43 W.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent:\u003c\/strong\u003e 0.04-0.44 A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax speed:\u003c\/strong\u003e 4300 rpm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEEI:\u003c\/strong\u003e ≤ 0.21.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection class:\u003c\/strong\u003e IPX4D.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin inlet pressure:\u003c\/strong\u003e 0.5 m at 50°C, 4.5 m at 95°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePumped liquid:\u003c\/strong\u003e Heating water (VDI 2035), water-glycol mixtures (max 30%).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort-to-port length:\u003c\/strong\u003e 130 mm or 180 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 2 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for underfloor heating, radiator systems, and air-conditioning in residential settings.\u003c\/li\u003e\n\u003cli\u003eCompatible with heating water and water-glycol mixtures; check pumping data for mixtures above 20%.\u003c\/li\u003e\n\u003cli\u003eInstallation: Horizontal motor axis; compact for easy replacement; use with blending valves for UFH.\u003c\/li\u003e\n\u003cli\u003eControl via green push button for modes and curves.\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended; warranty typically 5 years.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Wilo","offers":[{"title":"Default Title","offer_id":63420703277405,"sku":"WILO01","price":127.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/WiloParaHigh-EfficiencyCirculatorPumpforUnderfloorHeating.webp?v=1771003768"},{"product_id":"wilo-yonos-pico-25-1-5-130-high-efficiency-glandless-heating-circulator-pump","title":"Wilo Yonos PICO 25\/1-5 130 High-Efficiency Glandless Heating Circulator Pump","description":"\u003cdiv style=\"font-size: 16px; line-height: 1.6; color: #1a1a1a; max-width: 900px; margin: 0 auto; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;\"\u003e\n\u003cp style=\"font-size: 17px; line-height: 1.65; margin: 0 0 18px 0;\"\u003eThe \u003cstrong\u003eWilo Yonos PICO 25\/1-5 130\u003c\/strong\u003e is a \u003cstrong\u003ehigh-efficiency glandless circulator\u003c\/strong\u003e (article number 4215522) for sealed central heating, underfloor and air-conditioning systems in single- and small two-family homes. Its electronically commutated \u003cstrong\u003eECM synchronous motor\u003c\/strong\u003e draws as little as \u003cstrong\u003e4 W at minimum load\u003c\/strong\u003e, with an Energy Efficiency Index \u003cstrong\u003eEEI ≤ 0.20\u003c\/strong\u003e — the benchmark for the most efficient circulators on the market.\u003c\/p\u003e\n\u003cp style=\"font-size: 17px; line-height: 1.65; margin: 0 0 22px 0;\"\u003eThe \u003cstrong\u003egreen operating button\u003c\/strong\u003e selects \u003cstrong\u003eΔp-c (constant)\u003c\/strong\u003e, \u003cstrong\u003eΔp-v (variable) differential pressure\u003c\/strong\u003e or three fixed-speed curves; the front \u003cstrong\u003eLED display\u003c\/strong\u003e shows setpoint, live watts and fault codes. With \u003cstrong\u003e5 m max head\u003c\/strong\u003e, \u003cstrong\u003e1½\" BSP unions\u003c\/strong\u003e and \u003cstrong\u003e130 mm port-to-port length\u003c\/strong\u003e, it is a direct, energy-efficient swap for older fixed-speed pumps.\u003c\/p\u003e\n\u003cdiv style=\"margin: 0 0 24px 0;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eEEI ≤ 0.20\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eECM Motor\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e5 m Max Head\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e130 mm Length\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e1½\" BSP\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e230 V\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eCast-Iron Body\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(140px,1fr)); gap: 12px; margin: 0 0 26px 0;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e5 m\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX DELIVERY HEAD\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e4 W\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMIN POWER DRAW\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003eΔp-c\u003cbr\u003eΔp-v\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eCONTROL MODES\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e110°C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX FLUID TEMP\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e10 bar\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX OPERATING PR.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff5f5; border-left: 4px solid #d32f2f; padding: 12px 18px; margin: 0 0 14px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #b71c1c;\"\u003eProfessional installation required.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003eA 230 V AC mains-powered device — must be installed by a qualified electrician. \u003cstrong\u003eNot ATEX-rated\u003c\/strong\u003e; do not install in explosive atmospheres or use to circulate flammable fluids.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f57c00; padding: 12px 18px; margin: 0 0 14px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #e65100;\"\u003eHeating circuits only.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003e\u003cstrong\u003eCast-iron-bodied heating circulator\u003c\/strong\u003e — \u003cstrong\u003enot\u003c\/strong\u003e approved for potable \/ domestic hot water secondary return loops. For DHW circulation use the stainless-steel-bodied \u003cstrong\u003eYonos PICO-Z\u003c\/strong\u003e instead.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; padding: 12px 18px; margin: 0 0 26px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #005c54;\"\u003eTypical application.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003eSealed gas, oil or heat-pump heating systems in single-family homes — perfect upgrade from a fixed 3-speed pump where energy savings, quieter operation and ErP compliance matter.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 14px; margin: 0 0 28px 0;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eECM High-Efficiency Motor\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eAn electronically commutated \u003cstrong\u003esynchronous motor\u003c\/strong\u003e with built-in frequency converter delivers \u003cstrong\u003eEEI ≤ 0.20\u003c\/strong\u003e and a fraction of the energy use of older fixed-speed pumps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eΔp-v for Radiator Circuits\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eIn \u003cstrong\u003eΔp-v mode\u003c\/strong\u003e the pump automatically reduces head as TRVs close down — ideal for radiator circuits where load changes constantly through the day.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eΔp-c for Underfloor Heating\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003e\u003cstrong\u003eΔp-c mode\u003c\/strong\u003e keeps head steady across changing flow — the right choice for UFH manifolds with thermal actuators that switch zones on and off.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eLED Setpoint \u0026amp; Watt Display\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eThe single front \u003cstrong\u003eLED window\u003c\/strong\u003e doubles as setpoint adjustment and live readout, showing the chosen mode, head in metres and live \u003cstrong\u003epower consumption in watts\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eAutomatic Deblocking\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eIf the rotor sticks after a long shutdown, an \u003cstrong\u003eautomatic deblocking routine\u003c\/strong\u003e attempts to free it before raising a fault — preventing avoidable callouts on seasonal first-fire.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eRobust Materials\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003e\u003cstrong\u003eGrey cast-iron pump body\u003c\/strong\u003e rated to 10 bar with a \u003cstrong\u003ePP-GF40 impeller\u003c\/strong\u003e, stainless-steel shaft and metal-impregnated carbon bearings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 0 0 28px 0; font-size: 14.5px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eManufacturer \/ brand\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eWilo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eYonos PICO 25\/1-5 130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eArticle number (MPN)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4215522\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePump type\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eGlandless wet-rotor circulator with ECM motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. delivery head\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e5 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. flow rate (Q max.)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eApprox. 2.7 m³\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eEnergy Efficiency Index (EEI)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e≤ 0.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePower consumption P1\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4 – 33 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMains connection\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e1~230 V AC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eSpeed range\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e800 – 4,200 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eControl modes\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eΔp-c, Δp-v, 3 fixed-speed curves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eThreaded pipe union\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eRp 1\" (G 1½ thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePort-to-port length\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. operating pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e10 bar (PN10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eFluid temperature range\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e−10 °C to +110 °C (95 °C at 40 °C ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMin. inlet head at 50 \/ 95 \/ 110 °C\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e0.5 \/ 3 \/ 10 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePump housing\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eGrey cast iron (EN-GJL-200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eImpeller \/ shaft \/ bearings\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003ePP-GF40 \/ stainless steel \/ carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eProtection class\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eIPX2D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eInsulation class\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eWeight (net)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eApprox. 2.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eConformity\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eErP 2015 \/ EU 641\/2009; EN 61800-3 EMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eIs the 25\/1-5 the right size for my home?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eSized for \u003cstrong\u003esmaller systems\u003c\/strong\u003e — typically a single-family home with a modest radiator or UFH load and short pipe runs. If your existing pump runs on speed 1 or 2 of a 3-speed unit, the 25\/1-5 will almost certainly cover the duty. Larger or multi-zone systems generally need the 25\/1-6 (6 m head) or 25\/1-8 (8 m head).\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eWill it replace my Wilo Star-RS or Grundfos UPS 25\/50?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eYes — the \u003cstrong\u003e130 mm port-to-port length and 1½\" BSP unions\u003c\/strong\u003e are the industry-standard footprint shared by the Star-RS, UPS, UPS2 and Alpha 2 ranges. Existing union nuts usually transfer over without pipework changes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eWhich control mode should I select?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003e\u003cstrong\u003eΔp-v\u003c\/strong\u003e for radiator circuits with TRVs; \u003cstrong\u003eΔp-c\u003c\/strong\u003e for underfloor heating manifolds with thermal actuators. The three fixed-speed curves replicate traditional 3-speed pump behaviour if a boiler manufacturer specifies a fixed setting.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 26px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eHow much energy will it save?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eCompared with a typical older 3-speed pump averaging 60–90 W, the Yonos PICO range typically runs at \u003cstrong\u003e5–25 W\u003c\/strong\u003e in normal heating operation — in the order of \u003cstrong\u003e£40–£80 per UK heating season\u003c\/strong\u003e in electricity savings, depending on tariff and runtime.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 16px 22px; border-radius: 6px; margin: 30px 0 0 0; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; margin-bottom: 6px;\"\u003ePair It With\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; opacity: 0.95;\"\u003eGenuine Wilo gate valves, isolation unions and an inline magnetic system filter — all available from Quality Heating to complete a clean, low-maintenance circulator install.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Wilo","offers":[{"title":"Default Title","offer_id":64534741057885,"sku":"4215522","price":113.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/WiloYonosPICO251-5130CirculatingPump4215522.webp?v=1777288056"},{"product_id":"wilo-yonos-pico-25-1-6-130-high-efficiency-glandless-heating-circulator-pump","title":"Wilo Yonos PICO 25\/1-6 130 High-Efficiency Glandless Heating Circulator Pump","description":"\u003cdiv style=\"font-size: 16px; line-height: 1.6; color: #1a1a1a; max-width: 900px; margin: 0 auto; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;\"\u003e\n\u003cp style=\"font-size: 17px; line-height: 1.65; margin: 0 0 18px 0;\"\u003eThe \u003cstrong\u003eWilo Yonos PICO 25\/1-6 130\u003c\/strong\u003e is the \u003cstrong\u003emost popular size in the Yonos PICO range\u003c\/strong\u003e (article number 4215516) — a high-efficiency glandless circulator delivering up to \u003cstrong\u003e6 m head\u003c\/strong\u003e and \u003cstrong\u003e3.6 m³\/h flow\u003c\/strong\u003e for sealed heating, underfloor and air-conditioning circuits in single, two- and small multi-family homes. The \u003cstrong\u003eECM synchronous motor\u003c\/strong\u003e draws as little as \u003cstrong\u003e4 W\u003c\/strong\u003e, with \u003cstrong\u003eEEI ≤ 0.20\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp style=\"font-size: 17px; line-height: 1.65; margin: 0 0 22px 0;\"\u003eThe \u003cstrong\u003egreen operating button\u003c\/strong\u003e selects \u003cstrong\u003eΔp-c\u003c\/strong\u003e, \u003cstrong\u003eΔp-v\u003c\/strong\u003e or three fixed-speed curves — covering everything from a TRV-rich radiator circuit to a multi-zone UFH manifold. The on-pump \u003cstrong\u003eLED display\u003c\/strong\u003e shows setpoint, live \u003cstrong\u003ewatts and m³\/h flow\u003c\/strong\u003e, plus fault codes. With \u003cstrong\u003e1½\" BSP unions\u003c\/strong\u003e, \u003cstrong\u003e130 mm port-to-port\u003c\/strong\u003e and a \u003cstrong\u003ecast-iron body rated to 10 bar \/ 110 °C\u003c\/strong\u003e, it is a direct swap for older Wilo Star-RS, Grundfos UPS or Alpha 2 circulators.\u003c\/p\u003e\n\u003cdiv style=\"margin: 0 0 24px 0;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eEEI ≤ 0.20\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eECM Motor\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e6 m Max Head\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e3.6 m³\/h Flow\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e130 mm Length\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e1½\" BSP\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e230 V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(140px,1fr)); gap: 12px; margin: 0 0 26px 0;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e6 m\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX DELIVERY HEAD\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e3.6\u003cspan style=\"font-size: 16px;\"\u003e m³\/h\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX FLOW\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e4 – 40\u003cspan style=\"font-size: 16px;\"\u003e W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003ePOWER RANGE\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e110°C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX FLUID TEMP\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e10 bar\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX OPERATING PR.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff5f5; border-left: 4px solid #d32f2f; padding: 12px 18px; margin: 0 0 14px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #b71c1c;\"\u003eProfessional installation required.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003eA 230 V AC mains-powered device — must be installed by a qualified electrician. \u003cstrong\u003eNot ATEX-rated\u003c\/strong\u003e; do not install in explosive atmospheres or use to circulate flammable fluids.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f57c00; padding: 12px 18px; margin: 0 0 14px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #e65100;\"\u003eHeating circuits only.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003e\u003cstrong\u003eCast-iron-bodied heating circulator\u003c\/strong\u003e — \u003cstrong\u003enot\u003c\/strong\u003e approved for potable \/ domestic hot water secondary return loops. For DHW circulation use the stainless-steel-bodied \u003cstrong\u003eYonos PICO-Z\u003c\/strong\u003e instead.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; padding: 12px 18px; margin: 0 0 26px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #005c54;\"\u003eTypical application.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003eMid-sized sealed gas, oil or heat-pump heating systems — three- to four-bed homes with mixed radiator and UFH zones, or as a system pump downstream of a low-loss header.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 14px; margin: 0 0 28px 0;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eECM High-Efficiency Motor\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eAn electronically commutated \u003cstrong\u003esynchronous motor\u003c\/strong\u003e with built-in frequency converter delivers \u003cstrong\u003eEEI ≤ 0.20\u003c\/strong\u003e — the benchmark for the most efficient circulators.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eThree Modes Plus 3 Fixed Speeds\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003e\u003cstrong\u003eΔp-c\u003c\/strong\u003e for UFH, \u003cstrong\u003eΔp-v\u003c\/strong\u003e for TRV radiator circuits, or one of three \u003cstrong\u003econstant-speed curves\u003c\/strong\u003e if the boiler manufacturer specifies a fixed setting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eLive Flow \u0026amp; Power Readout\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eThe on-pump \u003cstrong\u003eLED window\u003c\/strong\u003e shows live \u003cstrong\u003eflow in m³\/h\u003c\/strong\u003e as well as power in watts — invaluable for verifying balancing and confirming the duty point during commissioning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eBlocking-Current Proof\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eThe motor is \u003cstrong\u003eblocking-current proof\u003c\/strong\u003e, so no external motor protection is required — the controller attempts an automatic deblocking restart if the rotor jams.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eManual Vent \u0026amp; Restart\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eA \u003cstrong\u003emanual venting routine\u003c\/strong\u003e clears trapped air from the rotor chamber on commissioning, and the manual restart button overrides a fault state once the underlying cause is resolved.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eRobust Materials\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003e\u003cstrong\u003eGrey cast-iron body\u003c\/strong\u003e rated to 10 bar with a \u003cstrong\u003ePP-GF40 impeller\u003c\/strong\u003e, stainless-steel shaft and metal-impregnated carbon bearings — built for long sealed-system service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 0 0 28px 0; font-size: 14.5px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eManufacturer \/ brand\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eWilo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eYonos PICO 25\/1-6 130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eArticle number (MPN)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4215516\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eEAN\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4048482758480\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePump type\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eGlandless wet-rotor circulator with ECM motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. delivery head\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e6 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. flow rate (Q max.)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e3.6 m³\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eEnergy Efficiency Index (EEI)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e≤ 0.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePower consumption P1\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4.0 – 40.0 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMains connection\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e1~230 V AC ±10%, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eSpeed range\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e800 – 4,200 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eControl modes\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eΔp-c, Δp-v, 3 fixed-speed curves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eThreaded pipe union\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eRp 1\" (G 1½ thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePort-to-port length\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. operating pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e10 bar (PN10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eFluid temperature range\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e−10 °C to +110 °C (95 °C at 40 °C ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMin. inlet head at 50 \/ 95 \/ 110 °C\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e0.5 \/ 3 \/ 10 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePump housing\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eGrey cast iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eImpeller \/ shaft \/ bearings\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003ePP-GF40 \/ stainless steel \/ carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eProtection class\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eIPX2D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eWeight (net)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eApprox. 2.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eConformity\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eErP 2015 \/ EU 641\/2009; EN 61800-3 EMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eWill the 25\/1-6 replace my existing pump?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eAlmost certainly. The \u003cstrong\u003e130 mm port-to-port length and 1½\" BSP unions\u003c\/strong\u003e are the industry-standard footprint shared by the Wilo Star-RS, Grundfos UPS, UPS2 and Alpha 2 ranges. Existing union nuts usually transfer over without pipework changes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eΔp-c or Δp-v — which mode should I use?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eUse \u003cstrong\u003eΔp-v (variable)\u003c\/strong\u003e for radiator systems with TRVs: the pump reduces head as TRVs close, saving energy and reducing flow noise. Use \u003cstrong\u003eΔp-c (constant)\u003c\/strong\u003e for UFH manifolds with thermal actuators that switch zones fully on or off — this maintains a steady head across the valves regardless of how many zones are calling.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eIs it compatible with heat pumps?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eYes, on the secondary side. Many heat-pump installations use a low-loss header or buffer tank, with the Yonos PICO as the \u003cstrong\u003esecondary circulator\u003c\/strong\u003e feeding the emitter circuit. Confirm with the heat-pump manufacturer that a wet-rotor ECM circulator on the secondary side is acceptable, and check duty against the published curves.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 26px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eHow much energy will it save?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eCompared with a typical older 3-speed pump averaging 60–90 W, the 25\/1-6 typically runs at \u003cstrong\u003e5–25 W\u003c\/strong\u003e in normal heating operation — in the order of \u003cstrong\u003e£40–£80 in electricity savings per UK heating season\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 16px 22px; border-radius: 6px; margin: 30px 0 0 0; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; margin-bottom: 6px;\"\u003ePair It With\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; opacity: 0.95;\"\u003eGenuine Wilo gate valves, isolation unions and an inline magnetic system filter — all available from Quality Heating to complete a clean, low-maintenance circulator install.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Wilo","offers":[{"title":"Default Title","offer_id":64534796173661,"sku":"4215516","price":123.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/WiloYonosPICO251-6130CirculatingPump4215516.webp?v=1777288291"},{"product_id":"wilo-yonos-pico-25-1-8-180-high-efficiency-glandless-heating-circulator-pump","title":"Wilo Yonos PICO 25\/1-8 180 High-Efficiency Glandless Heating Circulator Pump","description":"\u003cdiv style=\"font-size: 16px; line-height: 1.6; color: #1a1a1a; max-width: 900px; margin: 0 auto; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;\"\u003e\n\u003cp style=\"font-size: 17px; line-height: 1.65; margin: 0 0 18px 0;\"\u003eThe \u003cstrong\u003eWilo Yonos PICO 25\/1-8 180\u003c\/strong\u003e is the \u003cstrong\u003ehighest-head version\u003c\/strong\u003e of the Yonos PICO range (article number 4215517) — a high-efficiency glandless circulator delivering up to \u003cstrong\u003e8 m head\u003c\/strong\u003e and \u003cstrong\u003e4.4 m³\/h flow\u003c\/strong\u003e for larger sealed heating systems, multi-zone underfloor manifolds and properties with long pipe runs. The \u003cstrong\u003eECM synchronous motor\u003c\/strong\u003e draws from \u003cstrong\u003e4 W to a maximum of 75 W\u003c\/strong\u003e, with \u003cstrong\u003eEEI ≤ 0.20\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp style=\"font-size: 17px; line-height: 1.65; margin: 0 0 22px 0;\"\u003eBuilt on the same \u003cstrong\u003ecast-iron pump body\u003c\/strong\u003e and intuitive \u003cstrong\u003egreen-button interface\u003c\/strong\u003e as the rest of the range, the 25\/1-8 specifies a \u003cstrong\u003e180 mm port-to-port length\u003c\/strong\u003e for installations originally designed around the longer commercial-style footprint. Control modes cover \u003cstrong\u003eΔp-c, Δp-v\u003c\/strong\u003e and three fixed-speed curves; the \u003cstrong\u003eLED display\u003c\/strong\u003e shows live setpoint, watts, m³\/h flow and fault codes. Ports are \u003cstrong\u003e1½\" BSP\u003c\/strong\u003e, the body is rated to \u003cstrong\u003e10 bar at 110 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"margin: 0 0 24px 0;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eEEI ≤ 0.20\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eECM Motor\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e8 m Max Head\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e4.4 m³\/h Flow\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e180 mm Length\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e1½\" BSP\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e230 V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(140px,1fr)); gap: 12px; margin: 0 0 26px 0;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e8 m\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX DELIVERY HEAD\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e4.4\u003cspan style=\"font-size: 16px;\"\u003e m³\/h\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX FLOW\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e4 – 75\u003cspan style=\"font-size: 16px;\"\u003e W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003ePOWER RANGE\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e180 mm\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003ePORT-TO-PORT\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e10 bar\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX OPERATING PR.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff5f5; border-left: 4px solid #d32f2f; padding: 12px 18px; margin: 0 0 14px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #b71c1c;\"\u003eProfessional installation required.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003eA 230 V AC mains-powered device — must be installed by a qualified electrician. \u003cstrong\u003eNot ATEX-rated\u003c\/strong\u003e; do not install in explosive atmospheres or use to circulate flammable fluids.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f57c00; padding: 12px 18px; margin: 0 0 14px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #e65100;\"\u003eHeating circuits only.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003e\u003cstrong\u003eCast-iron-bodied heating circulator\u003c\/strong\u003e — \u003cstrong\u003enot\u003c\/strong\u003e approved for potable \/ domestic hot water secondary return loops. For DHW circulation use the stainless-steel-bodied \u003cstrong\u003eYonos PICO-Z\u003c\/strong\u003e instead.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; padding: 12px 18px; margin: 0 0 26px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #005c54;\"\u003eTypical application.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003eLarger sealed heating systems with high circuit resistance — multi-zone UFH manifolds, three-storey properties, long pipe runs, and replacement of legacy 180 mm commercial-style circulators on light-commercial and large-domestic installs.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 14px; margin: 0 0 28px 0;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003e8 m High-Head Performance\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003e\u003cstrong\u003e8 m maximum head\u003c\/strong\u003e and 4.4 m³\/h flow handle higher-resistance circuits — long pipe runs, multi-zone UFH manifolds, plate-heat-exchanger secondaries — without forcing constant-speed operation at the top of the curve.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003e180 mm Replacement Footprint\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eThe \u003cstrong\u003e180 mm port-to-port length\u003c\/strong\u003e matches legacy commercial-style and certain larger-domestic circulators — ideal where the original pipework was set out for a 180 mm body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eThree Modes Plus 3 Fixed Speeds\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003e\u003cstrong\u003eΔp-c\u003c\/strong\u003e for UFH manifolds, \u003cstrong\u003eΔp-v\u003c\/strong\u003e for TRV radiator circuits, or one of three \u003cstrong\u003econstant-speed curves\u003c\/strong\u003e if the boiler manufacturer specifies a fixed setting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eLive Flow \u0026amp; Power Readout\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eThe on-pump \u003cstrong\u003eLED window\u003c\/strong\u003e shows live \u003cstrong\u003eflow in m³\/h\u003c\/strong\u003e as well as power in watts — invaluable for verifying balancing and confirming the duty point on a larger system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eAutomatic Deblocking\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eA \u003cstrong\u003eblocking-current-proof motor\u003c\/strong\u003e with automatic deblocking restart minimises the risk of seasonal seize-up on systems left dormant over the warmer months.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eRobust Materials\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003e\u003cstrong\u003eGrey cast-iron body\u003c\/strong\u003e rated to 10 bar with a \u003cstrong\u003ePP-GF40 impeller\u003c\/strong\u003e, stainless-steel shaft and metal-impregnated carbon bearings — built for long sealed-system service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 0 0 28px 0; font-size: 14.5px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eManufacturer \/ brand\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eWilo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eYonos PICO 25\/1-8 180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eArticle number (MPN)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4215517\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePump type\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eGlandless wet-rotor circulator with ECM motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. delivery head\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e8 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. flow rate (Q max.)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4.4 m³\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eEnergy Efficiency Index (EEI)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e≤ 0.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePower consumption P1\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4 – 75 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMains connection\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e1~230 V AC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eSpeed range\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e800 – 4,200 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eControl modes\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eΔp-c, Δp-v, 3 fixed-speed curves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eThreaded pipe union\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eRp 1\" (G 1½ thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePort-to-port length\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. operating pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e10 bar (PN10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eFluid temperature range\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e−10 °C to +110 °C (95 °C at 40 °C ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMin. inlet head at 50 \/ 95 \/ 110 °C\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e0.5 \/ 3 \/ 10 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePump housing\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eGrey cast iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eImpeller \/ shaft \/ bearings\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003ePP-GF40 \/ stainless steel \/ carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eProtection class\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eIPX2D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eWeight (net)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eApprox. 2.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eConformity\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eErP 2015 \/ EU 641\/2009; EN 61800-3 EMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eWhen should I choose the 25\/1-8 over the 25\/1-6?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003ePick the 25\/1-8 when the system has \u003cstrong\u003ehigh circuit resistance\u003c\/strong\u003e — long pipe runs, multiple UFH manifolds with long flow loops, plate-heat-exchanger secondaries, or larger properties on more than one floor. If a heat-loss \/ pipework calculation puts the duty point beyond about 5 m head at design flow, step up to the 8-metre version.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eIs it a drop-in replacement for a 180 mm Wilo Star-RS 25\/8 or Grundfos UPS 25\/80?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eYes — the \u003cstrong\u003e180 mm port-to-port length and 1½\" BSP unions\u003c\/strong\u003e match the legacy commercial-style 180 mm footprint. Existing union nuts usually transfer over; only the electrical connection needs re-making.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eΔp-c or Δp-v — which mode should I use?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003e\u003cstrong\u003eΔp-v (variable)\u003c\/strong\u003e for radiator circuits with TRVs; \u003cstrong\u003eΔp-c (constant)\u003c\/strong\u003e for UFH manifolds with thermal actuators. The three fixed-speed curves are available if the system designer or boiler manufacturer specifies a fixed-speed setting.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 26px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eWill it work with antifreeze and inhibitors?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eYes — approved for \u003cstrong\u003ewater and water-glycol mixtures up to 1:1\u003c\/strong\u003e. Above 20% glycol the duty point should be re-checked against the published curves to allow for higher viscosity. Use a sealed-system inhibitor compatible with grey cast iron, PP-GF impeller and stainless-steel shaft.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 16px 22px; border-radius: 6px; margin: 30px 0 0 0; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; margin-bottom: 6px;\"\u003ePair It With\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; opacity: 0.95;\"\u003eGenuine Wilo gate valves, isolation unions and an inline magnetic system filter — all available from Quality Heating to complete a clean, low-maintenance circulator install.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Wilo","offers":[{"title":"Default Title","offer_id":64534868230493,"sku":"4215517","price":147.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/WiloYonosPICO251-8180CirculatingPump4215517.webp?v=1777288510"},{"product_id":"wilo-yonos-pico-z-25-0-5-6-130-stainless-steel-domestic-hot-water-circulator-pump","title":"Wilo Yonos PICO-Z 25\/0,5-6 130 Stainless Steel Domestic Hot Water Circulator Pump","description":"\u003cdiv style=\"font-size: 16px; line-height: 1.6; color: #1a1a1a; max-width: 900px; margin: 0 auto; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;\"\u003e\n\u003cp style=\"font-size: 17px; line-height: 1.65; margin: 0 0 18px 0;\"\u003eThe \u003cstrong\u003eWilo Yonos PICO-Z 25\/0,5-6 130\u003c\/strong\u003e is a \u003cstrong\u003ehigh-efficiency stainless-steel circulator pump\u003c\/strong\u003e (article number 4255416) purpose-built for \u003cstrong\u003edomestic hot water (DHW) secondary return loops\u003c\/strong\u003e in detached, semi-detached and small multi-family homes. Its \u003cstrong\u003estainless-steel pump body\u003c\/strong\u003e is rated for potable water and an integrated \u003cstrong\u003ethermal insulation jacket\u003c\/strong\u003e minimises heat loss from the pump itself.\u003c\/p\u003e\n\u003cp style=\"font-size: 17px; line-height: 1.65; margin: 0 0 22px 0;\"\u003eBuilt around the same \u003cstrong\u003eECM synchronous motor\u003c\/strong\u003e platform as the heating Yonos PICO range — drawing as little as \u003cstrong\u003e4 W\u003c\/strong\u003e — but optimised for the lower flows and continuous duty of DHW recirculation. Setpoint is adjusted via the \u003cstrong\u003eGreen Button\u003c\/strong\u003e in 0.1 m increments; control modes include \u003cstrong\u003eΔp-c (constant differential pressure)\u003c\/strong\u003e, \u003cstrong\u003en-cst (continuous constant speed)\u003c\/strong\u003e and \u003cstrong\u003ethree fixed-speed curves\u003c\/strong\u003e. The \u003cstrong\u003eWilo-Connector\u003c\/strong\u003e plug enables tool-free electrical commissioning, and the LED display shows live watts, m³\/h flow and any error codes.\u003c\/p\u003e\n\u003cdiv style=\"margin: 0 0 24px 0;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eStainless Steel Body\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eDHW Approved\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eInsulation Jacket\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e6 m Max Head\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e130 mm Length\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003e1½\" BSP\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377CF; color: #fff; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin: 0 6px 8px 0;\"\u003eWilo-Connector\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(140px,1fr)); gap: 12px; margin: 0 0 26px 0;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e6 m\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX DELIVERY HEAD\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e3.5\u003cspan style=\"font-size: 16px;\"\u003e m³\/h\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX FLOW\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e4 W\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMIN POWER DRAW\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e95°C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX FLUID TEMP\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 26px; font-weight: bold; color: #005c54; line-height: 1;\"\u003e10 bar\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #4a5a5a; margin-top: 6px; font-weight: 600; letter-spacing: 0.3px;\"\u003eMAX OPERATING PR.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff5f5; border-left: 4px solid #d32f2f; padding: 12px 18px; margin: 0 0 14px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #b71c1c;\"\u003eProfessional installation required.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003eA 230 V AC mains-powered device — must be installed by a qualified electrician. The DHW circuit must be fitted with appropriate isolation valves, a non-return valve and a Legionella-control regime where required by Building Regulations or specification.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f57c00; padding: 12px 18px; margin: 0 0 14px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #e65100;\"\u003eDHW only — not for heating circuits.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003eThis is the \u003cstrong\u003estainless-steel-bodied PICO-Z\u003c\/strong\u003e for potable hot water recirculation. For sealed central heating circuits, use the cast-iron \u003cstrong\u003eYonos PICO 25\/1-6 130\u003c\/strong\u003e instead — it costs less and is optimised for higher heating-system temperatures.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; padding: 12px 18px; margin: 0 0 26px 0; border-radius: 4px;\"\u003e\n\u003cstrong style=\"color: #005c54;\"\u003eTypical application.\u003c\/strong\u003e \u003cspan style=\"color: #3a3a3a;\"\u003eDHW secondary return loop on an unvented cylinder or thermal store — keeping hot water at the tap within seconds and replacing fixed-speed bronze or stainless circulators (such as Wilo Star-Z or Grundfos UP-N) with an energy-saving ECM equivalent.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 14px; margin: 0 0 28px 0;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eStainless-Steel Hygienic Pump Body\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003ePump housing in \u003cstrong\u003estainless steel\u003c\/strong\u003e — corrosion-resistant, hygienic and approved for potable water contact, unlike cast-iron heating circulators which must never be used on a DHW return.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eDrinking-Water Certified\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eMaterials and design are \u003cstrong\u003ecertified for drinking-water contact\u003c\/strong\u003e — ensuring water supplied through the loop remains clean and safe.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eIntegrated Thermal Insulation Jacket\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eThe supplied \u003cstrong\u003einsulation jacket\u003c\/strong\u003e wraps the pump body to \u003cstrong\u003ereduce standing heat loss\u003c\/strong\u003e from the circulator itself — important on continuously running DHW return loops.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eECM Motor with EEI ≤ 0.20\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eSame \u003cstrong\u003eenergy-saving ECM platform\u003c\/strong\u003e as the heating Yonos PICO — minimum power consumption from just 4 W, compared with 30–60 W for the older fixed-speed bronze pumps it replaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eWilo-Connector Plug\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eThe \u003cstrong\u003eWilo-Connector\u003c\/strong\u003e enables fast, tool-free electrical connection — particularly valuable in tight airing cupboards where there's limited room to wire a conventional terminal box.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 18px;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; padding-bottom: 6px; border-bottom: 2px solid #008377; display: inline-block; margin-bottom: 10px;\"\u003eGreen Button \u0026amp; LED Display\u003c\/div\u003e\n\u003cp style=\"margin: 0; font-size: 14.5px; line-height: 1.55; color: #2a2a2a;\"\u003eSingle-knob \u003cstrong\u003eGreen Button\u003c\/strong\u003e setpoint control plus an \u003cstrong\u003eLED display\u003c\/strong\u003e showing live \u003cstrong\u003ewatts and m³\/h flow\u003c\/strong\u003e — ideal for verifying the loop is actually circulating after commissioning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 0 0 28px 0; font-size: 14.5px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eManufacturer \/ brand\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eWilo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eYonos PICO-Z 25\/0,5-6 130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eArticle number (MPN)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4255416\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eEAN\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4062679265841\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eDomestic hot water secondary recirculation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePump body material\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eDrinking-water approval\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eYes (potable-water-rated materials)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. delivery head\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e6 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. flow rate (Q max.)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e3.5 m³\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMains connection\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e1~230 V AC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMin. power consumption\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e4 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eControl modes\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eΔp-c, n-cst (continuous), 3 fixed-speed curves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eThreaded pipe union\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eRp 1\" (G 1½ thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003ePort-to-port length\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eMax. operating pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e10 bar (PN10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eFluid temperature range\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e+2 °C to +95 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eAmbient temperature range\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003e−10 °C to +40 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eProtection class\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eIPX4D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eElectrical connection\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eWilo-Connector (tool-free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eInsulation jacket\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eSupplied as standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eWeight (net)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eApprox. 1.86 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3; font-weight: 600; width: 45%;\"\u003eConformity\u003c\/td\u003e\n\u003ctd style=\"padding: 11px 14px; border: 1px solid #c8e6e3;\"\u003eErP \/ EU 641\/2009; EN 61800-3 EMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 12px 20px; margin: 28px 0 16px 0; border-radius: 6px; font-size: 18px; font-weight: bold; letter-spacing: 0.3px;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eWhy a special pump for DHW — can I just use a heating circulator?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eNo. \u003cstrong\u003eHeating circulators have cast-iron pump bodies\u003c\/strong\u003e that must never circulate fresh oxygenated drinking water — they will corrode and contaminate the supply. The PICO-Z uses a \u003cstrong\u003estainless-steel housing certified for potable water\u003c\/strong\u003e, which is the right choice for a DHW secondary return loop.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eWhat is the n-cst control mode for?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003e\u003cstrong\u003en-cst (continuous constant speed)\u003c\/strong\u003e is included specifically to make replacing legacy fixed-speed pumps like the \u003cstrong\u003eWilo Star-Z\u003c\/strong\u003e straightforward — set the equivalent curve and the PICO-Z behaves like the old pump but draws a fraction of the power. Δp-c and the three fixed-speed steps are also available for newer or larger DHW loops.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 10px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eWill it replace my existing bronze DHW pump?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eYes — the \u003cstrong\u003e130 mm port-to-port length and 1½\" BSP unions\u003c\/strong\u003e match the standard footprint shared by the Wilo Star-Z, Grundfos UP-N, Comfort series and most other domestic DHW circulators. Existing union nuts usually transfer over.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 18px; margin: 0 0 26px 0;\"\u003e\n\u003csummary style=\"font-weight: 600; color: #005c54; cursor: pointer; font-size: 15.5px;\"\u003eDoes it need a non-return valve?\u003c\/summary\u003e\n\u003cp style=\"margin: 12px 0 0 0; font-size: 14.5px; line-height: 1.6;\"\u003eYes — every DHW secondary return circuit should include a \u003cstrong\u003enon-return valve on the return leg\u003c\/strong\u003e to prevent reverse flow when the pump is off, plus isolation valves either side of the pump for service. These are not supplied with the pump — fit them to the manufacturer's installation diagram.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 16px 22px; border-radius: 6px; margin: 30px 0 0 0; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; margin-bottom: 6px;\"\u003ePair It With\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; opacity: 0.95;\"\u003eAn unvented cylinder DHW return kit — non-return valve, isolation valves and time-clock control — to complete a compliant, energy-efficient secondary recirculation loop. All available from Quality Heating.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Wilo","offers":[{"title":"Default Title","offer_id":64534917448029,"sku":"4255416","price":159.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/Yonos-PICO-Z-front-facing-with-insulation4255416.webp?v=1777288871"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/collections\/Wilo_logo_PNG3.png?v=1777966828","url":"https:\/\/qualityheating.co.uk\/collections\/wilo.oembed","provider":"AIZO Quality Heating","version":"1.0","type":"link"}