Enhanced Durability: Features a heavy-gauge rolled steel frame and pressure-cast aluminum end plates for structural integrity

Utilize the SPDT relay terminals and spade connectors to break the burner circuit or trigger an alarm when the liquid level falls below the probe tip

which is standard for most two-story residential systems

Enhanced Fuel Efficiency: Precision-calibrated natural gas flow regulation prevents over-firing and reduces overall energy consumption

preventing catastrophic pressure buildup

Resideo R4222D1013 Relay 318172-701 Enhanced Durability: Features a heavy-gaugeThe Resideo R4222D1013 Relay is a heavy duty, field proven switching solution designed for refrigeration, air conditioning, and industrial automation equipment. This 120V DPDT General Purpose Relay features a double pole, double throw contact configuration, allowing for simultaneous control of multiple circuits. Built with a laminated magnet construction for superior operating efficiency and an untaped coil for cooler performance under continuous