Field Controls Fan-In-A-Can® 120V Oil Systems CAS-3Designed to provide combustion air for appliances when direct connection to the burner is not possible (when the appliance is located in a confined space). The CAS-3 is designed for use with oil appliances. Designed for optimum safety and includes a proving device that won't allow the burner to engage without the Fan-in-a-Can® operating. Multiple units or additional controls are required for multiple appliance installations. Each unit is equipped with a two speed control for enhanced versatility. When the thermostat calls for heat, the Fan-in-a-Can® 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-Can® 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 INCHES16 WIDTH INCHES11 HEIGHT INCHES16 WEIGHT LBS16 BTU HIGH-- GPH3.25 FUEL TYPEOil APPLICATIONAny Oil Heating Appliance 120V INCLUDES4" Intake Air Hood, Fan-in-a-Can, 6" to 4" Reducer, Restrictor Plate LIMITED WARRANTY YEARS1 MANUFACTURER'S PART NUMBERCAS-3