Mr. Heater, MH540T, 540 Degree 45,000 BTU Tank Top Heater, 360 Degrees Burner Head, 180 Degrees Multi-Directional Bracket, 30,000-45,000 BTU Per Hour, For Use With Liquid Propane, Push Button TE Valve, Safety Shut Off Tip Over Switch, Mounts To A 20 LB Cylinder.