This Bluegrass Living Portable Kerosene/Diesel Forced Air Commercial Heater combines commercial quality construction with high-end features to deliver superior performance in temperatures down to -40°F. Perfect for heating up garages, construction sites, barns, factories or warehouse for your own comfort and well-being. This Product Is Proudly Assembled in the USA Using Parts Manufactured in the USA! Designed, Engineered, Assembled and Tested in the USA. Skilled American workers manufacture parts, assemble and test our products. Only high-quality materials and parts are used in the manufacturing of our products. Our factory features state of the art manufacturing equipment. Product ships from our domestic warehouse in Kentucky, USA. Product Features: Thermostat offers easy heat adjustments between 40-95 °F True multifuel capable: kerosene, #1 and #2 diesel fuel, #1 and #2 fuel oil and JP8/Jet A fuel; not for use with biodiesel Instant heat - No startup time required Outdoor/weatherproof design Durable black powder coating finish Heavy duty steel construction Cold-starting at up to -40°F Fuel recognition system Thermally protected motor for long life Easy to service Onboard diagnostic center Agency approved safe for use on combustible flooring Agency certified for outdoor use Easy to use fuel cap & gauge 120 volt outdoor/weatherproof auxiliary outlet built into the power cord CSA certified What’s In the Box: Kerosene Heater Please Note: This Item Is Not for Sale To Residents In California. Check your local regulations before purchasing and installation. Click Here to view state by state code acceptances for vent-free gas appliances. Vent-Free heaters do not operate at elevations above 4,500 feet altitude. WARNING Click Here for detailed information on Prop 65. BK80T Owner's Manual