Product Features # Heater and wall furnace rated # 35,000 BTU's in natural gas or propane and 78% steady state maximum efficiency # Yellow Dancing FlameÃî burner system # 50% flame/heat adjustment for maximum comfort and efficiency # Compact, easily accessible and user-friendly controls # Equipped with 100% safety shut off feature for your peace of mind # Heat transferring, high heat ceramic glass # Clear, 230 sq. inches of viewing area - 19 1/4" 21 1/4" # President's Limited Lifetime Warranty # Approved with Simpson Dura-Vent, as well as Wolf Steel Vent Components and installs safely on any floor, even carpet # Vents up to 20ft horizontally and 34 ft vertically (direct vent stove) # Direct vent model requires no chimney, it vents conveniently through a wall or roof and uses outside combustion air # Approved for bathroom (direct vent only) bedroom, bed-sitting room and basement installations # Suitable for mobile home installation # Patented B-vent adaptor kit conveniently modifies the direct vent stove into a conventional B-vent unit # Installs safely on any floor, even carpet and vents up to 20 ft. horizontally and up to 40 ft. vertically Specification Type Specification Fuel Natural Gas or Propane Vent Type Direct Vent or B-Vent BTU Input Natural Gas 35,000 BTU Input Propane 31,500 BTU Output Natural Gas 27,300 BTU Output Propane 24,600 Maximum Heating Efficiency (Steady State) NG 78% Maximum Heating Efficiency (Steady State) LP 78% Maximum Heating Efficiency (AFUE) NG 72% Maximum Heating Efficiency (AFUE) LP 71%