Tjernlund Products 950-0472 Fan Prover Kit

The Tjernlund Products 950-0472 Fan Prover Kit is a pressure-sensing part intended for use withHVAC systems. This is compatible with furnaces and boilers and its burners only activate when the ventilation is adequate. It used prevent backdrafts and combustion problems by verifying negative pressure in the vent pipe. The unit lends itself to durable performance, extends equipment life, and supports compliance with safety codes for residential and commercial heating systems. The air flow to be certain that fans are working right before the start up to provide the system with better safety and improvement of efficiency.