Largest boiler manufacturer in the world.

high efficiency gas boiler ebaycondensing boiler

High Efficiency Steam Boilers - die-gartengestalter.

High Efficiency Steam Boilers -

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.