Field Controls Fan-In-A-Drum® 1.8M BTU CAS-7The Fan-in-a-Drum® is a commercial product designed to deliver combustion air into the mechanical room, boiler room or furnace location to overcome a confined space or inadequate air supply. Dual volt unit for oil or gas applications. When the thermostat calls for heat, the Fan-in-a-Drum® engages and begins drawing air into the structure. When air flow is established, the pressure switch closes. The CAS sends a signal to the appliance, allowing the burner to fire. The Fan-in-a-Drum® diffuses the outside air into the room near the burner to ensure adequate air for efficient combustion. Made in the USA. Product Specifications BRANDField Controls LENGTH INCHES23 WIDTH INCHES23 HEIGHT INCHES22 WEIGHT LBS47 BTU HIGH1800000 FUEL TYPEOil or Gas APPLICATIONMechanical Room, Boiler Room Or Furnace Location INCLUDESFan-In-A-Drum, Strap kit LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERCAS-7