The new cordless 68,000 BTU DEWALT® forced air propane heater is heavy-duty design built for the job site. With hybrid technology for maximum versatility, go cordless with a DEWALT® 20V MAX® or FlexVolt® battery (battery not included), or switch to a standard extension cord. Variable heat output from 27,000 to 68,000 BTUs heats up to 1,700 square feet. Designed with continuous electronic ignition for quick and reliable starting, and Quiet Burner Technology making it 50% quieter than other standard propane heaters. Have peace of mind with an overheat detection system and thermo-electric safety valve that shuts off gas flow if the flame goes out, so you can focus on the task at hand. Includes a 10 ft. hose and regulator with an approximate 13 hour run time on a 20 lb. propane tank, so you can stay warm and comfortable while getting the job done.