BioWIN 3.3 to 26kw (up to 78kw in cascade). Large integrated hopper or vacuum pellet feed from silo.     BioWIN XL 35,45 and 60kw ( up to 180kw in cascade). Unique vacuum with 8 suction probes and full  boiler and burner cleaning.   VarioWIN 3.8 to 12kw (1 – 12kw with balance tank) Compact pellet boiler with various … Continue reading Pellet boilers – overview