This propane (LP) convection heater can by Dura Heat offers inexpensive solutions for heat on the job. It provides a 360 degree radius heat output with a variable 75,000 – 200,000 BTU output and heats up to 4,700 sq. ft. This heater requires no electricity and burns clean with LP gas. The collapsible 2-piece design is the largest of the LP convection "trash can" heaters and can heat large workspaces. It operates up to 28 hours on a single 100 lb LP cylinder. 10 ft. Hose and regulator included.