Desa 404120 is a 50,000 BTU space heater with a 4.5 gallon fuel tank capacity and a fuel consumption rate of approximately 0.34 gallons per hour. This heater requires a 115-volt, 60-cycle AC power source and is equipped with safety features such as a safety control that shuts off all power to the heater in the event of a malfunction, and a three-prong plug for proper grounding. The Desa 404120 is designed to provide ample heat for well-ventilated areas and is suitable for use in various indoor settings, such as workshops, garages, and warehouses.