{"product_id":"tempstar-hot-surface-igniter-kit-for-t8mpl050b12b2-hsi-with-gas-valve-ships-today","title":"Tempstar Hot Surface Igniter Kit for T8MPL050B12B2 — HSI with Gas Valve | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM hot surface igniter (HSI, part number 1172533) is the factory ignition element for the Tempstar T8MPL050B12B2 gas furnace, listed alongside the compatible Honeywell VR8205S snap-mount gas valve (part number 1175705). The HSI energizes on each call for heat, glows red-hot at roughly 120V, and ignites the burner gas. A failed igniter is the leading cause of no-heat service calls — the furnace will run the inducer and attempt ignition but never light, often ending in lockout. This durable element resists the thermal-cycling cracks that retire standard igniters early.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelated Gas Valve\u003c\/td\u003e\n\u003ctd\u003e1175705 (VR8205S snap)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eHot Surface Igniter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (Heil \/ ICP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGas Furnace Ignition\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\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM fit for the Tempstar T8MPL050B12B2 furnace and shared across ICP\/Heil\/Comfortmaker single-stage furnaces using the 1172533 igniter. The 1175705 VR8205S valve is the matching snap-mount gas valve for the same platform. Confirm your part numbers before ordering.\u003c\/p\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the switch and breaker, shut off the gas, and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the lower service\/blower panel to expose the burner and igniter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the igniter wiring, bracket, and (if servicing) the gas valve connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Unplug the igniter connector, remove the mounting screw, and lift out the old igniter without touching the ceramic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new igniter in the same orientation, handling only the base, and reconnect per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore gas and power, then run a full heat cycle to confirm the igniter glows and the burners light reliably.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInducer runs but burners never ignite (no-heat).\u003c\/li\u003e\n\u003cli\u003eIgniter does not glow or glows dim\/uneven.\u003c\/li\u003e\n\u003cli\u003eVisible cracks, chips, or white spots on the ceramic.\u003c\/li\u003e\n\u003cli\u003eRepeated ignition lockouts or short cycling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\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":63021777518963,"sku":"1172533-GEN","price":42.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048461255027,"sku":"1172533","price":55.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-1172533_b4df0f85-6d86-458b-b4b8-e4ef8e8e2022.jpg?v=1782960426","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-hot-surface-igniter-kit-for-t8mpl050b12b2-hsi-with-gas-valve-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}