The redesigned Atwood Mojave Forced-Air Propane Furnace features a new heat exchanger, radius tubing for quiet operation, improved airflow, and a lighter build. This furnace can be positioned in several different ways, making it the easiest furnace to install in a conversion van, small trailer, truck camper, or even an ice fishing house. The innovative heat exchanger has a one-piece tubular design that eliminates seams and welding for a more robust heat exchanger that maximizes air distribution. The radius tubing allows the air to move more freely through and around the heat exchanger. Reduced air turbulence means a quieter furnace. The flexible design allows this furnace to be mounted horizontally or vertically. With several duct configurations to choose from, you can make your cabinet the way you want. This unit is typically installed in tent campers, truck campers, and small travel trailers due to its small size and lower BTU capacities. SpecificationsDimensions: 12-1/8"W x 7-1/8"H x 20"DPower Source: PropanePeak Fuel Consumption: 6.8 cu. ft./hr. Input: 18, 000 BTUOutput: 13, 680 BTUElectrical Requirements: 12V DCAmp Draw: 4.8AWatts: 56 Can be mounted horizontally or vertically Perfect size for tent campers, truck campers, & small travel trailers | Dometic Atwood DFSD20111 SP Mojave 18K Propane Furnace