it stabilizes the flame and optimizes the fuel-air mixture's ignition

Durable Construction: Features a 430 stainless steel pilot tip rated for high temperatures

or visible heat damage near the vent blower housing

including A2L-ready systems

Optimized for HVAC ventilation and clean firing

White Rodgers 1F85U-22PR Thermostat 30067439-890 it stabilizes the flame andFor contractors looking for a versatile, shop stocking standard, the White Rodgers 1F85U 22PR 80 Series thermostat is a professional grade universal solution for complex HVAC configurations. This 2H 2C multi stage thermostat provides precise control for conventional systems up to two heating and two cooling stages, as well as 2H 1C heat pump applications. Engineered for maximum field flexibility, it features selectable 7 day, 5+1+1 day, or non