Rear side fireclay (back wall fireclay) made of vermiculite with holes

dass sich Ablagerungen auf dem Brennteller lösen und dadurch eine konstante Verbrennungsluftversorgung gegeben ist

Connecting hose (downpipe) to the rotary valve

Gasket for the exhaust fan (induced draft fan)

Thanks to the round head with a diameter of 4cm

Isolierung innerer Kesseldeckel Vermiculite -Smart (XS)- Deckel Rear side fireclay (back wallVermiculite insulation for the inner boiler lid. For koFEN Smart or Smart XS pellet boilers from 07 2013 . Please note during installation: The screws must not be tightened too tightly; there must always be a small amount of play between the insulation and the screw. There are two variants of the insulation! Please pay attention to your pellet boiler model: koFEN Smart or koFEN Smart XS (not suitable for devices with ZeroFlame technology) Please