Are you ready to heat your backyard? This industrial grade outdoor gas heater puts out a whopping 40,000 BTUs of heat, and can cover a 20ft diameter with warmth. This radiant heater is perfect for large gatherings in your backyard, after the sun has gone down. Fire this gas patio heater up and you can keep your outdoor activities going until the sun comes back up. The heavy gauge construction keeps this patio heater around for years and years. Hidden wheels, under the base of the outdoor heater, make it easy for you to move it around, to wherever its heat is needed. A latched cabinet hides the propane supply, while the push button electronic ignition makes this outdoor propane heater easy to light and use. As a safety feature, this gas propane patio heater has a tilt shutoff valve so that in case it falls over; the propane is shut off, reducing the risk of fire. There is a heat controlled dial on unit, and unit heats for an average of 8-12 hours. Some Assembly Required. Liquid Propane (LP) gas contains more carbon than natural gas and burns nearly three times hotter. LP Gas comes from a tank.