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High Efficiency Steam Boilers - die-gartengestalter.

High Efficiency Steam Boilers - die-gartengestalter.de

Condensing boiler - Wikipedia 2019-9-20 · Condensing boilers are water heaters fueled by gas or oil. They achieve high efficiency (typically greater than 90% on the higher heating value) by condensing water vapour in the exhaust gases and so recovering its latent heat of vaporisation, which would otherwise have been wasted.