Stay warm on those surprise cool nights and enjoy your deck all winter long with these propane patio heaters! Heat output from 9-16 feet, these will keep you and your guest warm and extend your deck / patio time! Casters at the base make this even better so that you can roll it to wherever you need the heat. Features: Heat output range: 9-16 feet Propane tank required (20 lb) not included BTU: 40,000 Ignition: push button Casters on bottom for easy mobility 31" wide at base and at top 87" tall Safety tip auto shut-off feature Approved for both commercial and residential use Constructed of 19 gauge steel