The heater is designed for wold weather space heating, Ideal for tents, greenhouses, garages, shops, and more. Most desired feature is the self-powered design, there is an on board battery on this unit that can be charged before you deploy the unit. This heater will operate in conditions up to -60 degrees F. Designed to deliver a powerful 90,000 BTU/H of heat output. Burns diesel, k-1, df-1,dfa, and jp-8. All aluminium construction.