Comfort Zone CZPP300 Propane Forced Air Heater for Sale. Used but in good working condition. C/w owner s manual. Below is info from the manufacture Comfort Zone's Forced Air Propane Heater 40,000 to 60,000 BTUs is safe and clean burning propane gas. Has 3 heat settings and adjustable heat angle. With an electrical ignition, it can heat up an area up to 1800 sq ft. Comes with a 10 ft hose and re...