The special design of the cap enables permanent and autonomous exchange of air between the pellet store and outside air
in all installation positions. The filler lid is also recommended by DEPV (German Energy Wood and Pellet Association)!
This lid was developed by the company IB STEINER and was awarded as one of the best patent in Austria of the year 2011 by the Austrian Patent Office. Besides the carbon monoxide, also the sometimes occurring often unpleasant resin smell can escape through this product. Replace your lid with one with ventilation function!