{"product_id":"ideal-hp290-pre-plumbed-dhw-cylinder-single-zone-150-180l","title":"Ideal HP290 Pre-Plumbed DHW Cylinder — Single Zone (150\/180L)","description":"\u003c!-- SEO Product Name: Ideal HP290 Pre-Plumbed DHW Cylinder — Single Zone (150\/180L) --\u003e\n\u003cdiv style=\"font-size:16px;font-family:Arial,Helvetica,sans-serif;color:#222;max-width:900px;margin:0 auto;line-height:1.55;\"\u003e\n\u003cp style=\"margin:0 0 14px 0;\"\u003eThe \u003cstrong\u003eIdeal HP290 Single Zone Pre-Plumbed Cylinder\u003c\/strong\u003e is the simplest configuration in the HP290 range — a factory-assembled indoor hydraulic unit for straightforward properties running \u003cstrong\u003eone heating zone\u003c\/strong\u003e, with no buffer or low loss header. Every cylinder ships \u003cstrong\u003efully pre-plumbed and pre-wired\u003c\/strong\u003e with the HP290 control box, circulation pump, diverter valve, magnetic filter, G3 unvented safety kit and a 3 kW immersion heater — the installer connects primary flow\/return, DHW, cold feed and electrics, with no on-site hydraulic assembly required.\u003c\/p\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:8px;margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 140px;min-width:120px;background:#008377CF;color:#fff;padding:14px 10px;text-align:center;border-radius:6px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;line-height:1.1;\"\u003e150–180L\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;opacity:0.95;letter-spacing:0.3px;text-transform:uppercase;\"\u003eCapacity range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px;min-width:120px;background:#008377CF;color:#fff;padding:14px 10px;text-align:center;border-radius:6px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;line-height:1.1;\"\u003e1-Zone\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;opacity:0.95;letter-spacing:0.3px;text-transform:uppercase;\"\u003eHeating control\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px;min-width:120px;background:#008377CF;color:#fff;padding:14px 10px;text-align:center;border-radius:6px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;line-height:1.1;\"\u003eNo buffer\/LLH\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;opacity:0.95;letter-spacing:0.3px;text-transform:uppercase;\"\u003eHydraulics\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px;min-width:120px;background:#008377CF;color:#fff;padding:14px 10px;text-align:center;border-radius:6px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;line-height:1.1;\"\u003eG3 kit\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;opacity:0.95;letter-spacing:0.3px;text-transform:uppercase;\"\u003eUnvented safety\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px;min-width:120px;background:#008377CF;color:#fff;padding:14px 10px;text-align:center;border-radius:6px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;line-height:1.1;\"\u003e3 kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;opacity:0.95;letter-spacing:0.3px;text-transform:uppercase;\"\u003eImmersion heater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 140px;min-width:120px;background:#008377CF;color:#fff;padding:14px 10px;text-align:center;border-radius:6px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;line-height:1.1;\"\u003e2\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;opacity:0.95;letter-spacing:0.3px;text-transform:uppercase;\"\u003eConfigurations\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FBEAE9;border-left:4px solid #B3261E;padding:14px 16px;margin:16px 0;border-radius:0 4px 4px 0;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#B3261E;margin-bottom:4px;\"\u003eHP290 heat pump compatibility only\u003c\/div\u003e\n\u003cdiv\u003eThis cylinder range is designed \u003cstrong\u003eexclusively for the Ideal HP290 R290 heat pump\u003c\/strong\u003e — the control box, wiring and pre-plumbed hydraulics are matched to the HP290 platform and are not a generic fit for other manufacturers' heat pumps.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E0;border-left:4px solid #C89200;padding:14px 16px;margin:16px 0;border-radius:0 4px 4px 0;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#C89200;margin-bottom:4px;\"\u003eG3-qualified installer required\u003c\/div\u003e\n\u003cdiv\u003eEvery HP290 cylinder is unvented and includes a full G3 safety kit. UK Building Regulations require the DHW side to be \u003cstrong\u003ecommissioned by a G3-qualified installer\u003c\/strong\u003e. Failure to install and commission to Ideal's instructions may invalidate the warranty.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#E6F3F1;border-left:4px solid #008377;padding:14px 16px;margin:16px 0;border-radius:0 4px 4px 0;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#008377;margin-bottom:4px;\"\u003eSimplest configuration in the range\u003c\/div\u003e\n\u003cdiv\u003eThis is the \u003cstrong\u003eplain pre-plumbed\u003c\/strong\u003e configuration — no integrated buffer or low loss header. Choose this where your property runs a single heating zone and your installer's system design doesn't call for extra hydraulic separation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color:#008377;font-size:18px;margin:24px 0 10px 0;padding-bottom:6px;border-bottom:2px solid #008377CF;\"\u003eChoose your capacity\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"border-collapse:collapse;width:100%;font-size:14.5px;margin:8px 0;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF;color:#fff;padding:9px 12px;border:1px solid #008377;text-align:left;font-weight:700;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF;color:#fff;padding:9px 12px;border:1px solid #008377;text-align:left;font-weight:700;\"\u003eFormat\u003c\/th\u003e\n\u003cth style=\"background:#008377CF;color:#fff;padding:9px 12px;border:1px solid #008377;text-align:left;font-weight:700;\"\u003eModel code\u003c\/th\u003e\n\u003cth style=\"background:#008377CF;color:#fff;padding:9px 12px;border:1px solid #008377;text-align:left;font-weight:700;\"\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FAFA;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003e150 L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eSlimline\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eIDEPLUHP150PPSZSL\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eCompact airing cupboards, single-zone heating only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003e180 L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eSlimline\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eIDEPLUHP180PPSZSL-D8\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eNarrow-footprint installs needing slightly more DHW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FAFA;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003e180 L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eIDEPLUHP180PPSZ\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eTypical 2–3 bedroom single-zone systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"color:#008377;font-size:18px;margin:24px 0 10px 0;padding-bottom:6px;border-bottom:2px solid #008377CF;\"\u003eWhy choose the Single Zone Pre-Plumbed Cylinder\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:10px;margin:14px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 260px;min-width:240px;background:#fff;border:1px solid #E5E7EB;border-top:3px solid #008377CF;padding:14px 16px;border-radius:4px;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#008377;margin-bottom:6px;\"\u003eCompact, simple hydraulics\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px;\"\u003eNo integrated buffer or low loss header means a smaller overall footprint and the most straightforward pre-plumbed configuration in the HP290 range — ideal where system design doesn't call for extra hydraulic volume.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px;min-width:240px;background:#fff;border:1px solid #E5E7EB;border-top:3px solid #008377CF;padding:14px 16px;border-radius:4px;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#008377;margin-bottom:6px;\"\u003eSlimline format available\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px;\"\u003eBoth 150 L and one 180 L variant are offered in a \u003cstrong\u003enarrower Slimline cabinet\u003c\/strong\u003e — suited to constrained airing cupboards.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px;min-width:240px;background:#fff;border:1px solid #E5E7EB;border-top:3px solid #008377CF;padding:14px 16px;border-radius:4px;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#008377;margin-bottom:6px;\"\u003eFully pre-plumbed and pre-wired\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px;\"\u003eCirculation pump(s), 3-port diverter valve, magnetic filter, G3 safety kit and the \u003cstrong\u003eHP290 control box\u003c\/strong\u003e all factory-fitted and wired. The installer connects primary, DHW, cold feed and mains power — no on-site hydraulic assembly.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px;min-width:240px;background:#fff;border:1px solid #E5E7EB;border-top:3px solid #008377CF;padding:14px 16px;border-radius:4px;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#008377;margin-bottom:6px;\"\u003eIndustry-leading reheat times\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px;\"\u003eMulti-coil heat exchanger design engineered for fast DHW recovery even at the lower flow temperatures typical of heat pump operation — Ideal specifically call out reheat performance as a differentiator for the HP290 cylinder range.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px;min-width:240px;background:#fff;border:1px solid #E5E7EB;border-top:3px solid #008377CF;padding:14px 16px;border-radius:4px;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#008377;margin-bottom:6px;\"\u003eHP290 control box included\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px;\"\u003eThe control box consolidates all electrical components and provides the homeowner-facing interface — smart grid and solar PV compatible, with Wi-Fi connectivity and Anti-Legionella scheduling built in.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px;min-width:240px;background:#fff;border:1px solid #E5E7EB;border-top:3px solid #008377CF;padding:14px 16px;border-radius:4px;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#008377;margin-bottom:6px;\"\u003eG3 unvented safety kit as standard\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px;\"\u003eEvery cylinder includes the pressure\/temperature relief valve, expansion vessel and discharge pipework needed to meet Part G3 of the Building Regulations for unvented hot water storage.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px;min-width:240px;background:#fff;border:1px solid #E5E7EB;border-top:3px solid #008377CF;padding:14px 16px;border-radius:4px;\"\u003e\n\u003cdiv style=\"font-weight:700;color:#008377;margin-bottom:6px;\"\u003e3 kW immersion heater\u003c\/div\u003e\n\u003cdiv style=\"font-size:14.5px;\"\u003eEvery HP290 cylinder is fitted with a 3 kW immersion as standard — backup DHW heating and Anti-Legionella disinfection support alongside the heat pump.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color:#008377;font-size:18px;margin:24px 0 10px 0;padding-bottom:6px;border-bottom:2px solid #008377CF;\"\u003eSpecification (all capacities)\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable style=\"border-collapse:collapse;width:100%;font-size:14.5px;margin:8px 0;\"\u003e\n\u003ctr style=\"background:#F7FAFA;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eRange\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eIdeal HP290 Pre-Plumbed DHW Cylinder — Single Zone Pre-Plumbed Cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eAvailable capacities\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003e150 L (Slimline) \/ 180 L (Slimline or Standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FAFA;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eCompatible heat pump\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eIdeal HP290 R290 monobloc (exclusive fit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eTank construction\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eDuplex stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FAFA;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eDHW type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eUnvented — full G3 safety kit included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eBackup heater\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003e3 kW immersion (fitted as standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FAFA;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eControl box\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eHP290 Control Box (included) — smart grid and solar PV compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eAnti-Legionella\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eWeekly disinfect cycle to 60°C for 15 minutes (default), heat pump + immersion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FAFA;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eMinimum system water flow rate\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eAt least 30 litres\/minute recommended into the property\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eOptimum inlet pressure\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003e3 bar dynamic (will function at lower pressure with reduced performance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FAFA;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003ePrimary system minimum volume (HP290 platform)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003e40 litres free system volume\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eCompatible controllers\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eIdeal HP290 Controller or Ideal Halo Lite RF programmable room thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FAFA;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;font-weight:600;width:42%;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #E5E7EB;\"\u003eIdeal HP290 platform warranty — up to 5 years parts and labour when registered within 30 days and serviced annually\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003ch3 style=\"color:#008377;font-size:18px;margin:24px 0 10px 0;padding-bottom:6px;border-bottom:2px solid #008377CF;\"\u003eWhat's in the box (every capacity)\u003c\/h3\u003e\n\u003cul style=\"padding-left:22px;margin:8px 0;\"\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eIdeal HP290 pre-plumbed DHW cylinder — Single Zone Pre-Plumbed Cylinder (capacity per selected variant)\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eHP290 Control Box — pre-wired\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eCirculation pump(s) — pre-plumbed\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003e3-port diverter valve — pre-plumbed\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eMagnetic system filter — pre-fitted\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eFull G3 unvented safety kit (expansion vessel, T\u0026amp;P relief valve, discharge pipework components)\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003e3 kW immersion heater — pre-fitted\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eManufacturer installation and maintenance documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color:#008377;font-size:18px;margin:24px 0 10px 0;padding-bottom:6px;border-bottom:2px solid #008377CF;\"\u003eWhat you'll also need (sold separately)\u003c\/h3\u003e\n\u003cul style=\"padding-left:22px;margin:8px 0;\"\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eIdeal HP290 R290 monobloc heat pump (matched capacity — see our HP290 heat pump listings)\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eIdeal Halo Lite RF programmable room thermostat, or use the HP290 Controller as room thermostat\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eDischarge pipework to a suitable tundish and drain point per G3 requirements\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eAnti-freeze protection on any pipework exposed to ambient temperatures below 5°C\u003c\/li\u003e\n\u003cli style=\"margin-bottom:5px;\"\u003eSystem inhibitor dosing per BS 7593:2019\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color:#008377;font-size:18px;margin:24px 0 10px 0;padding-bottom:6px;border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails style=\"border:1px solid #E5E7EB;border-radius:4px;margin:8px 0;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;background:#008377CF;color:#fff;padding:10px 14px;font-weight:600;list-style:none;\"\u003eWhich capacity should I choose?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px;background:#FFFFFF;\"\u003e150 L Slimline suits the most space-constrained single-zone installs. 180 L (Slimline or Standard) gives more DHW headroom for typical 2–3 bedroom single-zone systems — choose Slimline only if cupboard width is genuinely tight, as it doesn't add extra capacity or functionality over Standard.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #E5E7EB;border-radius:4px;margin:8px 0;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;background:#008377CF;color:#fff;padding:10px 14px;font-weight:600;list-style:none;\"\u003eIs this suitable for two-zone heating?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px;background:#FFFFFF;\"\u003eNo — this configuration is \u003cstrong\u003esingle-zone only\u003c\/strong\u003e. If your property runs underfloor heating and radiators (or two areas) at different flow temperatures, see our HP290 Two Zone cylinder listings instead.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #E5E7EB;border-radius:4px;margin:8px 0;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;background:#008377CF;color:#fff;padding:10px 14px;font-weight:600;list-style:none;\"\u003eDo I need a G3-qualified installer?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px;background:#FFFFFF;\"\u003eYes — every HP290 cylinder is an \u003cstrong\u003eunvented\u003c\/strong\u003e hot water cylinder. UK Building Regulations require the DHW side to be commissioned by a \u003cstrong\u003eG3-qualified installer\u003c\/strong\u003e. Failing to install and commission to Ideal's manufacturer instructions may invalidate the warranty.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #E5E7EB;border-radius:4px;margin:8px 0;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;background:#008377CF;color:#fff;padding:10px 14px;font-weight:600;list-style:none;\"\u003eWhat's included in the control box?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px;background:#FFFFFF;\"\u003eThe HP290 Control Box consolidates the electrical components for the whole system and gives the homeowner-facing interface for heating and DHW schedules, Anti-Legionella cycling, and Wi-Fi connectivity. It's \u003cstrong\u003esmart grid and solar PV compatible\u003c\/strong\u003e as standard, and is included in every pre-plumbed cylinder.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #E5E7EB;border-radius:4px;margin:8px 0;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;background:#008377CF;color:#fff;padding:10px 14px;font-weight:600;list-style:none;\"\u003eIs a room thermostat included?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px;background:#FFFFFF;\"\u003eThe HP290 Controller can itself function as a room thermostat if no separate programmable room thermostat is fitted. For a dedicated wireless room thermostat experience, Ideal's \u003cstrong\u003eHalo Lite RF\u003c\/strong\u003e is the compatible option — sold separately.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #E5E7EB;border-radius:4px;margin:8px 0;overflow:hidden;\"\u003e\u003csummary style=\"cursor:pointer;background:#008377CF;color:#fff;padding:10px 14px;font-weight:600;list-style:none;\"\u003eCan this cylinder be used with a different heat pump?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px;background:#FFFFFF;\"\u003eNo — the HP290 pre-plumbed cylinder range is \u003cstrong\u003edesigned exclusively for the Ideal HP290 R290 heat pump\u003c\/strong\u003e. The control box, wiring and pre-plumbed hydraulics are matched specifically to that platform and are not a generic unvented cylinder for other manufacturers' systems.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Ideal Heating","offers":[{"title":"150L Slimline","offer_id":65396798816605,"sku":"236198","price":2130.0,"currency_code":"GBP","in_stock":true},{"title":"180L Slimline","offer_id":65396798849373,"sku":"236204","price":2500.0,"currency_code":"GBP","in_stock":true},{"title":"180L Standard","offer_id":65396798882141,"sku":"236199","price":2500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/Ideal-Heating-Logic-Air-DHW-Pre-Plumbed-Single-Zone-Heat-Pump-Cylinder.jpg?v=1785232607","url":"https:\/\/qualityheating.co.uk\/products\/ideal-hp290-pre-plumbed-dhw-cylinder-single-zone-150-180l","provider":"AIZO Quality Heating","version":"1.0","type":"link"}