Original 540-Degree 45,000 BTU Tank Top Radiant Propane Heater This Blue flame 10,000 BTU natural gas vent free heater is the perfect supplemental heating solution even on the coldest days. The unit is equipped with a multi-output valve for easy temperature regulation and a convenient piezo ignition built right into the rotation of the knob for one handed ignition. It can be permanently mounted to the wall or securely fastened to the floor with included mounting brackets and fasteners. The clean burning Blue flame tube burner uses the natural convection of the burn to circulate warm comfortable air. With a factory standard oxygen depletion sensor (ODS), rest assured this heater will provide you with years of comfortable and safe heat. Features Multi-directional radiant propane heater mounts directly to a 20 lb tank for easy portability High-medium-low regulator: 45,000-36,000-30,000 BTUs Tip-over safety shut-off switch Approximate 9.5 hour run time on high with a 20 lb tank Mounts on 20 - 100 lb propane cylinder USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.