Flue gas heat recovery

A flue gas heat recovery system can make boilers more efficient by capturing and re-using heat energy that would otherwise have escaped out of your flue or chimney.

Fits discreetly above compatible boilers, Improving Domestic Hot Water efficiency by using latent heat within flue gas to pre-heat incoming mains cold water. No need for blending valve or expansion vessel in most system designs and compatible with both horizontal and vertical flues.

All boilers which burn fuel to produce heat create exhaust gases, these need to be expelled outside. However as these gases are hot (about 200°C) as much as 35% of the heat being produced by the boiler can be wasted when they are expelled.

This system uses the hot flue to pre-heat the cold water being fed into the boiler. This means the boiler does not need to work as hard to provide you with hot water. Flue gas heat recovery systems significantly improve the performance of condensing boilers, with many achieving efficiencies of 90% and above. This means they use less gas intern saving you money on your bills.

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