CAS-6 and CAS-7 Combustion Air Systems
The Fan-in-a-Drum is a commercial product designed to deliver combustion air For Oil and Gas Heating Appliances
The 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. CAS 6 and CAS 7 are dual volt units for oil or gas applications.
What IS a Fan In A Drum?
The Fan-in-a-Drum CAS-6 and CAS-7 models are designed for use with any oil or gas fired furnace, water heater, or boiler with 24 VAC or 120 VAC control systems. It may also be used with millivolt water heaters and more than one appliance. The CAS-6 and CAS-7 units mechanically draw air into a structure and disperses it near the combustion air intake of an appliance.
When Do You Use a Vent Cap?
The Fan-in-a-Drum CAS-6SK and CAS-7SK models come with a Star-Kap vent cap. The Star-Kap is the only vent cap that is not required to be two feet higher than any structure within ten feet when used on detached or lean-to buildings that house heating equipment outside of the living space.
This product is designed for use with any oil or gas fired furnace, water heater, or boiler with 24 VAC or 120 VAC control systems. It may also be used with millivolt water heaters and more than one appliance. The CAS unit mechanically draws air into a structure and disperses it near the combustion air intake of an appliance. Refer to the CAS-6 and CAS-7 installation manual for guidance in setting up the CAS system based on the size and length of the connecting duct work and the input rating of the appliance.
What is combustion air?
In a typical natural gas furnace the heat is the igniter, the fuel is natural gas, and the oxygen is provided by combustion air. Combustion air is literally just the air needed to provide a continuous supply of air for proper combustion or burning.
Specifications
| PART # | MODEL | FUEL | BURNER | APPLIANCE INPUT | COMPONENTS |
| 46266303 | CAS-6SK | Oil or Gas | Any oil or gas heating appliance 120V | Up to 6.5 gph or 910,000 BTU/hr. | Includes StarKap |
| 46266304 | CAS-7SK | Oil or Gas | Any oil or gas heating appliance 120V | Up to 12.88 gph or 1,803,000 BTU/hr. | Includes StarKap |
| 46266305 | CAS-6 | Oil or Gas | Any oil or gas heating appliance 120V | Up to 6.5 gph or 910,000 BTU/hr. | |
| 46266306 | CAS-7 | Oil or Gas | Any oil or gas heating appliance 120V | Up to 12.88 gph or 1,803,000 BTU/hr. |