Garden Sun GS4100BLK Floor Standing 41,000 BTU Propane Powered Patio Heater With Push Button Ignition - BLACK BTU's: More Than 41,000 Heating Range: Can Heat up to 175 sq/ft (15' Radius) Push button ignition for easy lighting Wheel kit included for easy portability Fuel Type: Propane (LP) uses standard size bar-b-que tanks