Enclosed Front Room Heater 50,000 BTUH, 68% AFUE, Propane GasEnjoy instant warmth with a traditional enclosed vented room heater. This heater is vented through the roof to the outside (venting material not included). This heater delivers maximum efficiency and quiet operation with low fuel consumption. Provides comfort for areas requiring additional heat. California residents see Prop 65 WARNINGS High efficient 68% AFUE heats approximately 700 sq. ft. No electricity required; great for backup heat during a