York S1-025-29043-000 Hot Surface Ignitor you must use the Reznor

you must use the Reznor 57953 or an exact L170-40F equivalent

If the sensor remains open during heavy frost

corrosion-resistant material to ensure it holds up against the constant thermal cycling and moisture typical in a furnace or air handler combustion environment

this 2-position zone valve features a 3

ensuring accurate stroke and airflow modulation

York S1-025-29043-000 Hot Surface Ignitor you must use the ReznorThe York S1 025 29043 000 Hot Surface Ignitor is a high performance 120V heating element engineered specifically for residential gas fired furnaces under the York, Luxaire, and Coleman brands. Constructed from premium silicon nitride, this direct replacement ignitor offers superior thermal shock resistance and physical durability compared to legacy silicon carbide components. In a standard furnace sequence of operation, this HSI reaches ignition