Electric Boilers | No Gas, No Flue, 100% Efficient

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Not sure which type of electric boiler you need? Browse by category: Electric Combi Boilers — Instant hot water and heating in one unit, no cylinder required Electric System Boilers — Heating circuit boiler for use with a separate hot water cylinder, sealed pressurised systems Electric Heat Only Boilers — For open-vented gravity-fed systems, ideal for like-for-like replacement of older regular boilers Electric boilers work in exactly the same way as gas boilers — heating water and distributing it around your central heating circuit — but use electricity as the heat source instead of burning gas or oil. There is no flue, no combustion, no annual gas safety check, and no standing charge for a gas connection. They are 100% efficient at point of use, completely silent, and compatible with solar PV systems, allowing you to heat your home using energy you generate yourself. They are an increasingly popular choice for off-grid properties, new builds, flats, and any home moving away from fossil fuel heating. However, not all electric boilers are the same — and choosing the wrong type for your system is one of the most common and costly mistakes buyers make. The three types work in fundamentally different ways and are suited to different installations. Understanding the differences before you buy will save you significant time and expense. Electric Combi Boilers — Heating and Instant Hot Water in One Unit An electric combi boiler provides both central heating and domestic hot water from a single wall-mounted unit, with no need for a separate hot water cylinder, cold water tank, or loft pipework. When you open a hot tap, the boiler switches to domestic hot water mode and heats the water as it flows through — delivering it on demand at mains pressure. Combi boilers are compact, simple to install, and ideal for flats, smaller homes, and properties where space is limited. The key limitation to understand is flow rate — the amount of hot water the boiler can deliver is directly d