Now on Sale --Free Shipping 100% burner Safety shut-off -- Tilt switch Safe, Economical, and Easy to own The triple dome technology provides a more efficient and consistent distribution on heat. This is our best heater providing 40,000 BTUs of heat, a durable stainless steel burner, and premium construction, allowing for quick and easy assembly. And because your family's safety is your number-one concern, they feature a safety switch that immediately shuts the unit off if it is tilted. Certified by the American Gas Association and the Canadian Gas Association. Wheel Kit sold separately Rating: 40,000 BTU/hr. input Raises outdoor temperatures 10 F- 25 F Heating Range: 20' diameter Fuel: liquid propane gas- Tank not included Cylinder size: nominal 20 lb. / 5 gallon Manifold pressure: 11 W.C. Engine System: IPP E-3 Safety features: 100% burner shut-off; tilt switch Multispark Electronic Ignitor Pilot control; Acme, QCC type 1 regulator 2 Year Limited Warranty In Stock & Ships within 48 hours! Dimensions 93 H x 34 Dome Width (20 Base Width)