As a regular boiler burns gasoline or oil, a biomass boiler burns the Wooden logs/pellets/chips in an effort to heat the drinking water that supplies your radiators, baths, taps, etcetera. It's a great cooktop for the value. The JB645 has four aspects (our other picks have 5, which include a https://andresiynb.sharebyblog.com/27666952/pellet-stoves-an-overview