The Hybrid - 45MF pellet stove with patented COMBEX technology gives you all the advantages of wood pellet heat ~easy to use 65 - hour autonomy thermostatic control electronic lighting energy economy and extraordinary heat and cleanliness~ The COMBEX system balances combustion air and uptake to provide clean worry - free combustion which is less dependent on the leaktightness of the device and the quality of the combustible, ~EPA approved~ Maximum combustion time up to 45 hours ~6 Heat settings~ Electronic ignition Thermostatic or manual mode ~Automatic or manual adjustment of combustion air supply~ Incorporates latest COMBEX technology Wall thermostat Full size ash drawer Safe and removable handle, Specifications Type of Fuel Pellets Recommended Heating Area 2 200 sq ft Approved Vent Diameter 3 or 4 Burn Rate 1 3 to 5 5 lbs hr Electrical Consumption 2 5 Amps Continuous Duty Electrical Requirement 120 VAC - 60 hz - 15A Thermostatic or Manual Mode Yes Combustion Technology COMBEX Electronic Igniter Yes Type of Door Bay Window Ash Drawer Yes Glass Type Ceramic Glass Glass Surface 286 sq in Weight 230 lbs Test Standard - Safety ASTM - E1509 ULC S627 - 00 UL1482 - 98 Test Standards - Emissions EPA Method 28 Dimensions Exterior Width 27 Depth 25 5 Height 30 5 Minimum Clearances Back 2 Sides 6 Corners 2, Add a louver kit and a door overlay to complete the unit