The HeatStar 200,000 BTU Power Vented Unit Heater provides big heat for big spaces. With 200,000 BTU heat, the heater spreads th through factories or warehouses up to 6,700 sq ft. A fan pulls air from the room to be heated, and the power vent system pumps exhaust out of the building through a single vent pipe. The design minimizes labor and makes for easy installation. Air louvers with three locking positions control the direction of the heat. Work in th with the HeatStar 200,000 BTU Power Vented Unit Heater.