{"product_id":"tempstar-hot-surface-igniter-gas-valve-kit-for-t8mpn100f20b2-oem-1172533-vr8205s-ships-today","title":"Tempstar Hot Surface Igniter \u0026 Gas Valve Kit for T8MPN100F20B2 — OEM 1172533 \/ VR8205S | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis 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.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIgniter Part Number\u003c\/td\u003e\n\u003ctd\u003e1172533 (HSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGas Valve Part Number\u003c\/td\u003e\n\u003ctd\u003e1175705 (Honeywell VR8205S, snap-mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter + 24V Gas Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIgniter Voltage\u003c\/td\u003e\n\u003ctd\u003e120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Control Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect-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.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the switch and breaker, shut off the gas supply, and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the burner-compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter position, valve wiring, and gas-line connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug and unscrew the old igniter (handle by the ceramic base only); disconnect the valve wiring and gas line, then remove the old valve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new gas valve with proper thread sealant on gas connections, seat the new igniter in the flame path, and reconnect all wiring per your photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, leak-check all gas joints with soap solution, then run a heat cycle to confirm ignition and steady burner flame.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBlower runs but burners never light (no-heat).\u003c\/li\u003e\n\u003cli\u003eIgniter is cracked or reads open on a meter.\u003c\/li\u003e\n\u003cli\u003eGas valve clicks but no gas flows, or stays open improperly.\u003c\/li\u003e\n\u003cli\u003eRepeated ignition lockouts or a gas smell at the valve.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021765493107,"sku":"1172533-GEN","price":44.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048450998643,"sku":"1172533","price":58.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1172533_a9a2e183-ed53-4785-b38d-d8812205060e.jpg?v=1782960081","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-gas-valve-kit-for-t8mpn100f20b2-oem-1172533-vr8205s-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}