One of our most powerful pellet stoves, the ComfortBilt HP21 combines superior performance with a pleasing bay view design that will make you proud to own this stove year after year. Its quality engineering and construction have been praised by dealers and customers alike, earning it high ratings in published comparison tests. With its super-quiet heat exchange blower and an exhaust fan that helps pellets burn completely, the HP21 is one of the quietest, most efficient, and cleanest burning pellet stoves on the market today.