Lochinvar & A.O. Smith 100111655 Burner Assy 318172-701 This is a 24VAC 1-stage

This is a 24VAC 1-stage gas valve

The Rheem-Ruud 60-101921-81 is a high-performance 2-stage natural gas valve designed for high-efficiency HVAC systems utilizing Hot Surface Ignition (HSI) or Direct Spark Ignition (DSI)

while the Viton (FKM) seal material ensures chemical compatibility and high-temperature resilience

Enhanced Safety Integration: Comes equipped with a flammable vapor sensor and manual shut-off for industry-standard protection

Cost-Effective Maintenance: Replaces critical high-wear parts like the threaded stem and plug without breaking the piping

Lochinvar & A.O. Smith 100111655 Burner Assy 318172-701 This is a 24VAC 1-stageLochinvar & A. O. Smith 100111655 Nat Gas Burner Assy w #30 Orf