{"product_id":"heatrae-95050471-sadia-megaflo-eco-250ddd-direct-unvented-hot-water-cylinder","title":"Heatrae 95050471  Sadia Megaflo Eco 250DDD Direct Unvented Hot Water Cylinder","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHeatrae Sadia Megaflo Eco 250DDD 95050471\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a nominal \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e250-litre direct unvented hot water cylinder\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. It heats stored water electrically using \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ethree factory-fitted 3kW immersion heaters\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing a combined rating of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e9kW at 240V\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs a direct cylinder, it does not depend on a boiler-fed heating coil. It is an option for homes where electricity provides the domestic hot water, subject to an installer confirming the storage capacity, electrical supply and incoming water performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat makes the 250DDD different?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 250DDD has three immersion heaters, compared with the two fitted to the 250DD. This gives it a higher available heating input when all three elements are energised.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe manufacturer publishes an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e81-minute heat-up time at 9kW\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e under its test conditions. Actual heating time depends on the starting water temperature, supply voltage, controls and the number of elements operating.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEach immersion heater has its own thermostat and thermal cut-out, providing temperature control and protection against thermostat failure.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInternal expansion helps keep the installation compact\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eMegaflo Eco accommodates heated-water expansion through an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003einternal air-gap system with a floating baffle\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. This removes the need for a separate external vessel for the cylinder’s own hot water expansion, helping reduce external components and pipework.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe inner vessel is manufactured from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eduplex stainless steel\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, while the immersion heaters use \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etitanium elements\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. A \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e60mm layer of polyurethane insulation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e helps limit heat escaping from the stored water.\u003c\/span\u003e\u003c\/p\u003e","brand":"Heatrae","offers":[{"title":"Default Title","offer_id":57736227848567,"sku":"95050471","price":1500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/8927\/2802\/files\/heatrae-sadia-megaflo-eco-250ddd-direct-unvented-hot-water-cylinder-95050471_5012496504714_01c_MP.webp?v=1794390532","url":"https:\/\/www.electricalsonline.co.uk\/products\/heatrae-95050471-sadia-megaflo-eco-250ddd-direct-unvented-hot-water-cylinder","provider":"Electricals Online","version":"1.0","type":"link"}