Field Controls Fan-In-A-Can® 24V Gas Up to 110,000 BTU CAS-4JR

Designed to provide combustion air for appliances when direct connection to the burner is not possible (when the appliance is located in a confined space). 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.