{"product_id":"heatrae-sadia-megaflo-eco-direct-unvented-cylinder-quad-immersion-210dddd-250dddd-300dddd-eco-dir","title":"Heatrae Sadia Megaflo Eco Direct Unvented Cylinder Quad Immersion – 210DDDD \/ 250DDDD \/ 300DDDD ECO DIR","description":"\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;font-size:16px;color:#1a1a1a;max-width:900px;margin:0 auto;line-height:1.6;\"\u003e\n\n  \u003cp style=\"font-size:17px;color:#333;margin:0 0 20px;\"\u003e\n    The \u003cstrong\u003eHeatrae Sadia Megaflo Eco Direct DDDD\u003c\/strong\u003e is the most powerful electrically heated variant in the Megaflo Eco range — fitted with \u003cstrong\u003efour 3 kW titanium immersion heaters (12 kW total)\u003c\/strong\u003e for the fastest possible electric heat-up and maximum off-peak tariff flexibility. Available in \u003cstrong\u003e210, 250, and 300 litres\u003c\/strong\u003e, these cylinders share identical vessel dimensions and specifications with the DD and DDD variants — only the element count changes. Every model delivers \u003cstrong\u003emains-pressure hot water at up to 76 l\/min at 3 bar\u003c\/strong\u003e, uses the same \u003cstrong\u003einternal expansion system\u003c\/strong\u003e, and carries a \u003cstrong\u003elifetime inner-tank guarantee\u003c\/strong\u003e.\n  \u003c\/p\u003e\n\n  \u003c!-- Stat strip --\u003e\n  \u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;\"\u003e\n    \u003cdiv style=\"flex:1;min-width:115px;background:#008377CF;color:#fff;border-radius:6px;padding:16px 12px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:24px;font-weight:700;\"\u003e12 kW\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003e4 × 3 kW elements\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:115px;background:#008377CF;color:#fff;border-radius:6px;padding:16px 12px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:24px;font-weight:700;\"\u003e210–300 L\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eCapacity range\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:115px;background:#008377CF;color:#fff;border-radius:6px;padding:16px 12px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:24px;font-weight:700;\"\u003e51–73 min\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eFull heat-up (12 kW)\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:115px;background:#008377CF;color:#fff;border-radius:6px;padding:16px 12px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:24px;font-weight:700;\"\u003e76 l\/min\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eMax flow at 3 bar\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:115px;background:#008377CF;color:#fff;border-radius:6px;padding:16px 12px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:24px;font-weight:700;\"\u003eLifetime\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eInner-tank guarantee\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- G3 callout --\u003e\n  \u003cdiv style=\"background:#fff5f5;border-left:4px solid #e53e3e;padding:14px 18px;border-radius:4px;margin-bottom:20px;\"\u003e\n    \u003cstrong style=\"color:#c53030;\"\u003e⚠ G3 Competent Person \u0026amp; Qualified Electrician — 12 kW Load\u003c\/strong\u003e\u003cbr\u003e\n    DDDD cylinders must be installed by a \u003cstrong\u003eG3 accredited competent person\u003c\/strong\u003e. All electrical connections must be made by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e. With \u003cstrong\u003eup to 12 kW of installed element load\u003c\/strong\u003e, the electrical installation requires careful circuit design — individual elements typically each require their own \u003cstrong\u003ededicated fused spur or MCB-protected circuit\u003c\/strong\u003e. Confirm supply capacity and cable sizing with your electrician before ordering.\n  \u003c\/div\u003e\n\n  \u003c!-- Direct-only note --\u003e\n  \u003cdiv style=\"background:#e6f4f3;border-left:4px solid #008377CF;padding:14px 18px;border-radius:4px;margin-bottom:20px;\"\u003e\n    \u003cstrong style=\"color:#005c54;\"\u003eℹ Direct (electrically heated) — no boiler connection\u003c\/strong\u003e\u003cbr\u003e\n    DDDD models are heated \u003cstrong\u003eexclusively by their four 3 kW titanium immersion heaters\u003c\/strong\u003e. There is no boiler coil. Designed for \u003cstrong\u003eall-electric homes, air-source heat pump diverter applications\u003c\/strong\u003e (e.g. paired with a myenergi Eddi), \u003cstrong\u003eEconomy 7\/10 installations\u003c\/strong\u003e, and high-demand properties requiring maximum electric hot water capacity. For boiler-fed cylinders, see the \u003cstrong\u003eMegaflo Eco Indirect\u003c\/strong\u003e range.\n  \u003c\/div\u003e\n\n  \u003c!-- DDDD advantage --\u003e\n  \u003cdiv style=\"background:#fff8e6;border-left:4px solid #d69e2e;padding:14px 18px;border-radius:4px;margin-bottom:28px;\"\u003e\n    \u003cstrong style=\"color:#744210;\"\u003eℹ The fastest electric heat-up in the Megaflo Eco Direct range\u003c\/strong\u003e\u003cbr\u003e\n    The DDDD's \u003cstrong\u003e12 kW total capacity\u003c\/strong\u003e delivers the fastest cylinder heat-up available in the Megaflo Eco Direct family: \u003cstrong\u003e210DDDD in 51 min, 250DDDD in 60 min, 300DDDD in 73 min\u003c\/strong\u003e — compared to 68\/81\/97 min for DDD and 102\/121\/146 min for DD. Four separately controllable elements also allow the most sophisticated off-peak tariff configurations, including multiple time bands on a single cylinder.\n  \u003c\/div\u003e\n\n  \u003c!-- Features --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:4px;font-size:15px;font-weight:700;letter-spacing:.5px;margin-bottom:18px;\"\u003eKEY FEATURES\u003c\/div\u003e\n  \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-bottom:32px;\"\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:18px;\"\u003e\n      \u003cdiv style=\"color:#005c54;font-weight:700;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eFour Titanium Immersions — 12 kW Total\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eFour independently controlled \u003cstrong\u003e3 kW titanium immersion heaters\u003c\/strong\u003e provide the maximum installed electric capacity in the Megaflo Eco Direct range. \u003cstrong\u003eTitanium elements\u003c\/strong\u003e are specified for their outstanding longevity in aggressive, hard, or corrosive water — significantly outperforming standard Incoloy or stainless steel alternatives over a cylinder's lifespan.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:18px;\"\u003e\n      \u003cdiv style=\"color:#005c54;font-weight:700;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eFastest Megaflo Electric Heat-Up\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eRunning all four elements simultaneously at 12 kW gives the \u003cstrong\u003efastest full-cylinder heat-up in the entire Megaflo Eco Direct range\u003c\/strong\u003e: \u003cstrong\u003e51 minutes (210L), 60 minutes (250L), 73 minutes (300L)\u003c\/strong\u003e. For comparison, the equivalent DDD models take 68, 81, and 97 minutes; DD models take 102, 121, and 146 minutes. Critical for large properties where overnight off-peak charging time is limited.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:18px;\"\u003e\n      \u003cdiv style=\"color:#005c54;font-weight:700;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eMaximum Off-Peak Tariff Flexibility\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eFour independently wired elements allow \u003cstrong\u003eup to four separate time-band or tariff configurations\u003c\/strong\u003e on a single cylinder — ideal for Economy 10 (three off-peak periods), solar PV diverter integration (e.g. myenergi Eddi), and smart energy management systems that optimise immersion switching based on grid carbon intensity or time-of-use pricing.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:18px;\"\u003e\n      \u003cdiv style=\"color:#005c54;font-weight:700;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eInternal Expansion — No External DHW Vessel\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eIdentical to all Megaflo Eco models, the DDDD uses the \u003cstrong\u003epatented internal floating-baffle expansion system\u003c\/strong\u003e — no external DHW expansion vessel is required. The same cylinder body dimensions as the DD and DDD variants mean the DDDD is a \u003cstrong\u003edirect footprint-for-footprint upgrade\u003c\/strong\u003e when replacing an existing Megaflo.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:18px;\"\u003e\n      \u003cdiv style=\"color:#005c54;font-weight:700;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eDuplex Stainless Steel — Lifetime Guarantee\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe same \u003cstrong\u003ehigh-grade duplex stainless steel vessel\u003c\/strong\u003e, pressure-tested to 15 bar, as all Megaflo Eco cylinders. Heatrae Sadia back the inner vessel with a \u003cstrong\u003elifetime guarantee\u003c\/strong\u003e for domestic first-owner installations. All components carry a \u003cstrong\u003e2-year warranty\u003c\/strong\u003e. Manufactured in the UK under \u003cstrong\u003eBS EN ISO 9001, ISO 14001, ISO 50001 and OHSAS 18001\u003c\/strong\u003e.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:6px;padding:18px;\"\u003e\n      \u003cdiv style=\"color:#005c54;font-weight:700;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003e76 l\/min Mains Pressure — Full Kit Supplied\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eAll DDDD models deliver \u003cstrong\u003eup to 76 l\/min at 3 bar\u003c\/strong\u003e — identical flow performance to the DD and DDD. Every cylinder ships with the complete unvented safety pack: \u003cstrong\u003ecold water inlet control kit, factory-fitted 90 °C \/ 10 bar T\u0026amp;P valve, tundish, and T\u0026amp;P insulation kit\u003c\/strong\u003e.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- Specs --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:4px;font-size:15px;font-weight:700;letter-spacing:.5px;margin-bottom:18px;\"\u003eFULL SPECIFICATIONS — DDDD DIRECT VARIANTS\u003c\/div\u003e\n\n  \u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;margin-bottom:24px;\"\u003e\n    \u003cthead\u003e\u003ctr style=\"background:#008377CF;color:#fff;\"\u003e\n      \u003cth style=\"padding:10px 12px;text-align:left;border:1px solid #c8e6e3;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"padding:10px 12px;text-align:center;border:1px solid #c8e6e3;\"\u003eSpecification (all DDDD models)\u003c\/th\u003e\n    \u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eInner vessel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003eHigh-grade duplex stainless steel — tested to 15 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eInsulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e60 mm CFC\/HCFC-free fire-retardant PU foam (GWP = 3.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eImmersion heaters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e4 × 3 kW titanium @ 240 V (2.8 kW @ 230 V) — 12 kW total\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eOperating pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e0.3 MPa (3 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eMax mains supply (to PRV)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e1.6 MPa (16 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003ePressure relief valve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e0.8 MPa (8 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eT\u0026amp;P valve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e90 °C \/ 1 MPa (10 bar) — factory-fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eConnections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e22 mm compression \/ ¾\" BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eMax flow at 3 bar\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e76 litres\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eMax flow at 1 bar\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e45 litres\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eDiameter (all models)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003e579 mm (Ø)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eErP class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003eClass C (all DDDD models)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eKiwa certification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003eNo. 1608707\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eGuarantee\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003eLifetime inner tank · 2 years components\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eCountry of manufacture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #c8e6e3;text-align:center;\"\u003eUnited Kingdom\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;margin-bottom:24px;\"\u003e\n    \u003cthead\u003e\u003ctr style=\"background:#005c54;color:#fff;\"\u003e\n      \u003cth style=\"padding:9px 10px;text-align:left;border:1px solid #c8e6e3;\"\u003eModel\u003c\/th\u003e\n      \u003cth style=\"padding:9px 10px;text-align:center;border:1px solid #c8e6e3;\"\u003e210DDDD\u003c\/th\u003e\n      \u003cth style=\"padding:9px 10px;text-align:center;border:1px solid #c8e6e3;\"\u003e250DDDD\u003c\/th\u003e\n      \u003cth style=\"padding:9px 10px;text-align:center;border:1px solid #c8e6e3;\"\u003e300DDDD\u003c\/th\u003e\n    \u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eProduct code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e95050476\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e95050477\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e95050478\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eNominal capacity (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e210\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e250\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e300\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eImmersions (No. × kW)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e4 × 3 kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e4 × 3 kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e4 × 3 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eStorage vol @ 3 bar (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e199\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e236\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e283\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eV40 mixed at 40 °C (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e241\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e307\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e359\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eErP load profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003eL\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003eXL\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003eXL\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eErP water heating efficiency (%)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e37.5\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e37.8\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e37.7\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eHeat-up time (all 12 kW, min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e51\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e60\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e73\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eStanding heat loss (kWh\/24h)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1.42\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1.61\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1.69\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eAnnual electricity (kWh)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e2,731\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e3,513\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e4,476\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eWeight empty (kg)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e40\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e48\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e58\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eWeight full (kg)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e237\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e283\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e339\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- Dimensions --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:4px;font-size:15px;font-weight:700;letter-spacing:.5px;margin-bottom:18px;\"\u003eDIMENSIONS (mm) — identical to DDD variants\u003c\/div\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;margin-bottom:32px;\"\u003e\n    \u003cthead\u003e\u003ctr style=\"background:#005c54;color:#fff;\"\u003e\n      \u003cth style=\"padding:9px 10px;text-align:left;border:1px solid #c8e6e3;\"\u003eDimension\u003c\/th\u003e\n      \u003cth style=\"padding:9px 10px;text-align:center;border:1px solid #c8e6e3;\"\u003e210DDDD\u003c\/th\u003e\n      \u003cth style=\"padding:9px 10px;text-align:center;border:1px solid #c8e6e3;\"\u003e250DDDD\u003c\/th\u003e\n      \u003cth style=\"padding:9px 10px;text-align:center;border:1px solid #c8e6e3;\"\u003e300DDDD\u003c\/th\u003e\n    \u003c\/tr\u003e\u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eA — DHW inlet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e414\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e414\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e414\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eB — Cable entry lower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e275\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e275\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e275\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eC — Cable entry upper\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e801\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1009\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1313\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eD — T\u0026amp;P relief valve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1095\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1323\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1574\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eE — Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1486\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e1738\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e2053\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eF — Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e600\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e600\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e600\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eG — Width \/ Ø\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e579\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e579\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #c8e6e3;text-align:center;\"\u003e579\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:4px;font-size:15px;font-weight:700;letter-spacing:.5px;margin-bottom:18px;\"\u003eFREQUENTLY ASKED QUESTIONS\u003c\/div\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:4px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eHow much faster is the DDDD than the DDD and DD?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 18px;background:#f0faf9;font-size:15px;\"\u003eRunning all four 12 kW elements simultaneously, the DDDD range heats up in \u003cstrong\u003e51 min (210L), 60 min (250L), and 73 min (300L)\u003c\/strong\u003e. The equivalent DDD models (9 kW) take 68, 81, and 97 minutes; DD models (6 kW) take 102, 121, and 146 minutes. The DDDD is approximately \u003cstrong\u003e25% faster than the DDD and 50% faster than the DD\u003c\/strong\u003e for a full cold start — critical for high-demand households or properties where the overnight off-peak window is short.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:4px;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 electrical supply does a DDDD cylinder require?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 18px;background:#f0faf9;font-size:15px;\"\u003eWith \u003cstrong\u003e4 × 3 kW elements at 240 V\u003c\/strong\u003e, the maximum simultaneous load is \u003cstrong\u003e12 kW \/ 50 A\u003c\/strong\u003e. In practice, elements are rarely all energised simultaneously — most installations wire elements to separate time switches or smart controllers so only 1–2 elements run at once. Each element draws approximately 12.5 A and should have its own \u003cstrong\u003ededicated fused spur or MCB-protected radial circuit\u003c\/strong\u003e. Your electrician must assess the available supply capacity and agree a wiring scheme with the G3 installer before commissioning.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:4px;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 a DDDD be used with a solar PV diverter such as a myenergi Eddi?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 18px;background:#f0faf9;font-size:15px;\"\u003eYes — the DDDD is an excellent choice for \u003cstrong\u003esolar PV diverter integration\u003c\/strong\u003e. A device like the \u003cstrong\u003emyenergi Eddi\u003c\/strong\u003e diverts surplus solar generation to one or more immersion heaters rather than exporting it to the grid, effectively storing free solar energy as hot water. The DDDD's four elements give the diverter a wider range of power levels to match — for example, directing 3 kW to one element at low surplus, 6 kW to two at medium, and so on. The myenergi Eddi is sold separately and supports up to two immersion loads per unit.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:4px;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 the DDDD and DDD share the same cylinder body?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 18px;background:#f0faf9;font-size:15px;\"\u003e\n\u003cstrong\u003eYes\u003c\/strong\u003e — the 210DDDD, 210DDD, and 210DD are all the same physical cylinder body (1486 mm tall, 579 mm Ø). Only the number of immersion heater ports and fitted elements differs. This means the DDDD can be specified as a \u003cstrong\u003edirect physical replacement for any existing DD or DDD of the same nominal capacity\u003c\/strong\u003e, subject to the electrical supply being adequate for the additional elements.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:4px;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 guarantee does the Megaflo Eco DDDD carry?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 18px;background:#f0faf9;font-size:15px;\"\u003eHeatrae Sadia provide a \u003cstrong\u003elifetime guarantee on the inner duplex stainless steel vessel\u003c\/strong\u003e for domestic first-owner installations (30 years transferable). All components — immersion heaters, valves, controls — carry a \u003cstrong\u003e2-year warranty\u003c\/strong\u003e. Warranty validity requires correct G3 installation, annual servicing, and a completed Benchmark commissioning checklist.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Heatrae Sadia","offers":[{"title":"210L","offer_id":64748091146589,"sku":"95050476","price":1650.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":64748091179357,"sku":"95050477","price":1830.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":64748091212125,"sku":"300DDDD","price":1995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/HeatraeSadiaMegafloEcoPlusDirect250_300withErP.webp?v=1779289442","url":"https:\/\/qualityheating.co.uk\/products\/heatrae-sadia-megaflo-eco-direct-unvented-cylinder-quad-immersion-210dddd-250dddd-300dddd-eco-dir","provider":"AIZO Quality Heating","version":"1.0","type":"link"}