Counterflow wall furnaces heat larger areas and use a minimum amount of floor space.Heat comes out at floor level so you get even distribution of warmth throughout the room FAW-40 may be recessed between standard wall studs Choose between standing pilot (SPP) or electronic ignition (IP) models Install on inside or outside walls Total comfort for a fraction of the cost of electric heat Matchless piezo ignition Convenient 24V wall thermostat Front panels remove easily for cleaning and servicing Multi - room heating capacity with optional outlet kits (sold seperately) 76% A.F.U.E Proudly Made In USABTU Input: 40,000 Depth: 10.38 Features: Thermostat Height: 72.5 Power Source: Gas Safety Features: Automatic Shut - Off Type: Wall Mounted Panel Width: 14.13