The ComfortBilt HP50S Grey Pellet Stove has a compact European design that has been popular for years with customers in Germany, France, Australia, and Brazil. As our lowest priced pellet stove, the HP50 is a top-selling model in the USA as well, because of its quality engineering, reliable performance, and high heat output. Certified 42,000 BTU output will heat a 2,200 square feet or more if temperatures are mild EPA and CSA certified to comply with all federal emissions mandates Heat exchanger design and powerful room blower produce maximum heat from pellets 47 pound hopper capacity; ashes fall automatically into a large removable ash pan Pellets burn so completely that the ash drawer only needs emptying every two weeks Programmable thermostat allows constant temperature and economical pellet use Rear mounted 3” standard exhaust port, and 2” standard air intake Exterior dimensions of unit are 20.5” wide, 24” deep, and 36” high with mounted controller