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This OEM ignition kit covers the hot surface igniter (part number 1172533, IGNITOR HSI) and the matched snap-mount gas valve (part number 1175705, VALVE N HSI SNAP HW VR8205S) for the Tempstar T8MPN100F20B2 gas furnace. The HSI glows hot to ignite the burners on a call for heat, while the Honeywell VR8205S gas valve meters the gas supply and opens only when ignition conditions are safe. Together they form the heart of the furnace's ignition sequence — a failure in either causes no-heat or short-cycling lockouts.
| Spec | Value |
|---|---|
| Igniter Part Number | 1172533 (HSI) |
| Gas Valve Part Number | 1175705 (Honeywell VR8205S, snap-mount) |
| Type | Hot Surface Igniter + 24V Gas Valve |
| Brand | Tempstar (ICP / Heil) |
| Igniter Voltage | 120V |
| Valve Control Voltage | 24V |
| Fit | OEM Direct Replacement |
Direct-fit for the Tempstar T8MPN100F20B2 and other ICP/Heil/Comfortmaker furnaces using the 1172533 HSI and the VR8205S-style snap-mount gas valve (part 1175705). Confirm both part numbers and the valve's snap-mount configuration before installing.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.