Portable propane heater with 170K BTUs of heat output and offers efficient temporary heat for construction sites, agricultural buildings, industrial workspaces, remodeling jobs and more. Features a high-output fan to maximize air circulation, 10-ft. hose and regulator (tank sold separately). High-temperature limit switch/flame safety. Compact and lightweight with attached carrying handle. Includes a built-in thermostat. CSA Certified. This unit can heat up to 4,250 square feet.