Field Controls CAS-6 Combustion Air System

Field Controls CAS-6 Combustion Air System delivers dependable combustion air for oil- and gas-fired equipment, including oil-fired furnaces, gas-fired boilers, and water heaters. This ETL-listed combustion air system supports appliance inputs of 6.5 GPH (oil) and 910,000 BTU (gas), making it a versatile choice for residential and light commercial installations. The kit includes a Fan-In-A-Drum CAS unit, mounting bracket, wire/conduit connectors, and two SPDT control relays (24V AC and 120V AC), ensuring a straightforward, reliable setup and safe operation.

Designed for compatibility with standard combustion air requirements, the CAS-6 enhances venting performance, draft control, and safety across oil/gas fired furnaces, water heaters, and boilers. It is suitable for both new installs and retrofits, with ETL certification for Canada and the US.

• Complete CAS-6 package: Fan-In-A-Drum unit, mounting bracket, wire/conduit connectors, two SPDT relays (24V and 120V)
• Versatile compatibility: oil-fired furnaces, gas-fired boilers, water heaters
• Electrical readiness: 24V AC control relay and 120V AC control relay included
• ETL listed: certified for Canada and US use
• High-efficiency inputs: 6.5 GPH oil, 910,000 BTU gas