Tjernlund Products 950-0452 Fan Prover Kit

The Tjernlund Products 950-0452 Fan Prover Kit is an essential part used in HVAC systems. It provide safe operation by ensuring blowers are operational before allowing burners to light. This is commonly used with furnaces and water heaters to prevent system startup without proper ventilation. It works in a manner where, sensing changes in the airflow, it informs it when it is okay to start. This fan prover is suitable for retrofit or new installations and improves system durability reduces the risk of back drafting and supports code compliance in residential or commercial heating applications.