Field Controls CAS-1 Combustion Air System

CAS-1 Combustion Air System from Field Controls delivers reliable, code-compliant combustion air for oil-burning appliances. The CAS-1 is designed for oil burners and provides a dedicated air supply to ensure safe, efficient operation. With an appliance input of 2 GPH, this system supports standard residential and commercial oil heating setups. It includes a 4-inch intake air hood and a 4-inch vacuum relief valve, and it meets UL (Canada and US) standards for safety and performance. This compact, easy-to-install module fits oil-fired heating setups while supporting modern safety codes.

• 4-Inch Intake Air Hood provides a secure, dedicated air source
• 4-Inch Vacuum Relief Valve helps prevent back-draft and pressure buildup
• Designed for oil burners with 2 GPH appliance input
• UL (Canada and US) standard compliant for safety and performance
• Field Controls quality for reliable, long-lasting operation

Ideal for oil-fired appliances in residential and light commercial settings, the CAS-1 ensures safe, efficient combustion by delivering the right amount of air exactly where it’s needed.