"Energy costs are on the rise - Take control with a waste oil fired heater package from Lanair. Waste oil not only eliminates the cost to haul used oil off-site, but it can reduce your heating bills too. In addition, burning waste oil to get 'free' heat deals with a major pollution problem in an environmentally friendly way. Complete package is designed for commercial use. Advanced atomization technology with monthly maintenance eliminates the tedious daily cleaning required by old vaporization technology. Heat output varies with fuel type, building design, placement and heat loss. This item is not for sale in the state of California. Customers are responsible for checking local codes and regulations prior to purchase. U.S.A. Chimney Pipe Size in. 8, Heating Capability sq. ft. 8,500, Thermostat Included Yes, Blower CFM 3,975, Volts 120, Fuel Capacity gal. 215, Fuel Consumption gal./hr. 1.79, Amps 22.2, Fuel Type Waste Oil, Chimney Type Through-wall, BTU Output 250,000, Dimensions L x W x H in. 48 x 46 x 36. MX-250 heater Pump, filter, fuel piping kit, fuel lines, fittings, and burner Rust-resistant galvanized cabinet Adjustable locking louvers Axial fan Chimney pipe Class A kit for 16ft. eave - through-wall Chimney location Top AC power 120V 60Hz Compressed air customer supplied 2 CFM, 18 PSI Combustion chamber 10 GA CRS Hanging weight lbs. 630 UL listed"