Williams 60,000 BTU Top Vent Liquid Propane Gas Floor Heater

Affordable solution for large areas with limited floor space. This unobtrusive furnace requires no above-the-floor space. Natural convection quietly and efficiently circulates warm air. Combustion chamber lifts out for easy servicing.|58% AFUE with 70% thermal efficiency heats approximately 850 sq. ft.|No electricity required; great for backup heat during a power outage|Fitted with an automatic floor register grille temperature control|Resettable vent-limit safety switch and matchless pilot igniter|Long-life and quiet heavy-duty burner controls|High altitude and gas conversion kits available|Thermostat sold separately|Must be vented vertically|Designed for 24-1/4 in. W x 42-3/8 in. L floor opening|1/2 in. gas connection|4 in. vent pipe diameter