Windhager's PuroWIN Pellets combine the advantages of a patented counterflow gasifier with sustainable raw material pellets for very clean combustion. Our patented counterflow gasification makes PuroWIN one of the cleanest heaters in the world. The underlying principle takes advantage of the filtering effect of the fuel: First, the combustion chamber is filled with pellets. After ignition, embers are created in the lower part.

The boiler is very compact. Thanks to this, the coals are preserved for a long time - without fuel or air supply. As this means that the boiler no longer needs to be fully ignited each time it is started, PuroWIN requires significantly less ignition energy than other boilers. This makes it particularly energy efficient.