Compact, yet powerful 12 volt ducted furnaces are ideal for mid-size RVs. Heats sizeable living areas quickly. Efficient and versatile furnaces feature low amp draw, energy saving electronic ignitions, uniform cabinet size for installation flexibility, wall thermostats, gasket-sealed vent assemblies, steel gas manifolds, sealed forced-draft combustion, and chrome-plated vent caps. Unit size: 12-1/2 in.H x 12 in.W x 23 in.D. 1 per box. Thermostat is no longer included as of August 1, 2012.