What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T8MPT050B12B1 — OEM HSI Furnace Igniter | Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Tempstar equipment which lists the model number T8MPT050B12B1 — OEM HSI Furnace Igniter | Ships Today.

My furnace will not ignite. What part is bad?

A furnace that will not ignite after the draft inducer runs typically has a failed igniter. The hot surface igniter should glow bright orange within 60 seconds. If it does not glow at all, it is cracked or burned out. If it glows weakly, it is degrading and should be replaced preventively. Average lifespan: 3 to 7 years.

Is this igniter compatible with Bryant or Payne systems too?

Many Tempstar parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Tempstar

Tempstar Hot Surface Igniter for T8MPT050B12B1 — OEM HSI Furnace Igniter | Ships Today

Name: Tempstar Hot Surface Igniter for T8MPT050B12B1 — OEM HSI Furnace Igniter | Ships Today
Brand: Tempstar
SKU: 1172533-GEN
Price: 32.95 USD
Availability: InStock

SKU: 1172533-GEN Brand: Tempstar

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Overview

This OEM hot surface igniter (part number 1172533) is the factory ignition element for the Tempstar T8MPT050B12B1 two-stage gas furnace. The 120V HSI glows red-hot on each heat call to light the burner gas, working in concert with the furnace's Honeywell VR8205Q two-stage hot-surface gas valve (OEM 1172822) and control board. A failed igniter is the leading cause of a no-heat call: the control runs the inducer, opens the valve only if it sees a valid igniter, and locks out if the element is cracked or open. This igniter is the correct direct replacement when the original is eroded, fractured, or no longer drawing current.

Specifications

Spec	Value
Part Number	1172533
Type	Hot Surface Igniter (HSI)
Brand	Tempstar (ICP / Heil platform)
Voltage	120V
Pairs With	VR8205Q 2-Stage Gas Valve (OEM 1172822)
Application	2-Stage Gas Furnace Ignition
Fitment	OEM Replacement

Compatibility

Engineered for the Tempstar T8MPT050B12B1 furnace and the shared ICP / Heil / Comfortmaker two-stage platform using the VR8205Q hot-surface ignition system. Confirm your model and serial on the rating plate before ordering.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker, shut off the gas, and verify zero voltage with a multimeter.
Access — Remove the burner compartment service panel.
Document — Photograph the igniter position and harness routing before disconnecting.
Remove — Unplug the igniter connector, remove the mounting screw, and lift out the old igniter by its ceramic base only — never touch the element.
Install — Position the new igniter in the burner flame path, secure the screw, and reconnect the harness per your photo.
Test — Restore gas and power, call for heat, and confirm the igniter glows and both stages light correctly.

Signs You Need a Replacement

No heat — burners never ignite while the inducer cycles
Control locks out with an ignition-failure fault code
Visible crack, hot-spot blistering, or erosion on the element
Igniter fails to glow, or glows dim/uneven, on a heat call

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

Tempstar Hot Surface Igniter for...

$32.95

Frequently Asked Questions

Does this Igniter fit my Tempstar T8MPT050B12B1 — OEM HSI Furnace Igniter | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T8MPT050B12B1 — OEM HSI Furnace Igniter | Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the igniter on my Tempstar T8MPT050B12B1 — OEM HSI Furnace Igniter | Ships Today?

Difficulty: Medium (20–30 min)
Step 1: Turn off power and gas. Step 2: Open furnace panel. Step 3: Locate igniter near burners. Step 4: Disconnect two-wire plug. Step 5: Remove mounting screw. Step 6: Install new igniter — do NOT touch element with fingers. Step 7: Reconnect, close panel, restore power/gas.

My furnace won’t ignite. What part is bad?

Furnace won’t ignite after the draft inducer runs = failed igniter. The hot surface igniter should glow bright orange within 60 seconds. No glow = cracked/burned out. Weak glow = degrading. Average lifespan: 3–7 years. Replacement: $15–$40 DIY.

Is this igniter compatible with Bryant or Payne too?

Many Tempstar parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Tempstar igniter?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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