Condensing Boilers. What we need to Know About Them …
Unlike conventional boilers , such as oil boilers , condensing boilers possess an extra heat exchanger situated in the flue. The fumes, smoke, etc, called flue gasses heat up the water or the air when it's feed into the boiler .
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Condensing Boilers. What we need to Know About Them …
Tags: called-flue, exchanger-situated, extra-heat, flue, gasses-heat, such-as-oil, the-air, the-water, water