What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T8MPN100J20B1 — OEM 1172533 HSI | 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 T8MPN100J20B1 — OEM 1172533 HSI | 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 T8MPN100J20B1 — OEM 1172533 HSI | Ships Today

Name: Tempstar Hot Surface Igniter for T8MPN100J20B1 — OEM 1172533 HSI | Ships Today
Brand: Tempstar
SKU: 1172533-GEN
Price: 32.95 USD
Availability: InStock

SKU: 1172533-GEN Brand: Tempstar

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Overview

This genuine OEM hot surface igniter (HSI, part number 1172533, "IGNITOR HSI") lights the burners on the Tempstar T8MPN100J20B1 gas furnace. On a call for heat the control board energizes the igniter, it glows white-hot, and the Honeywell VR8205S snap-mount gas valve (OEM 1172821) opens to ignite the burners. The igniter is a brittle silicon-carbide or silicon-nitride element and is one of the most common furnace wear parts. Failure symptoms include no ignition and no heat, a furnace that clicks and runs the inducer but never lights, a visibly cracked or broken igniter element, or an igniter that no longer glows when commanded.

Specifications

Spec	Value
Part Number	1172533
Description	Igniter, Hot Surface (HSI)
Type	Hot surface igniter
Brand	Tempstar (ICP / Heil family)
Pairs With	Gas valve 1172821 — Honeywell VR8205S snap-mount HSI valve
Application	Furnace burner ignition
Fitment	OEM — exact replacement

Compatibility

Designed for the Tempstar T8MPN100J20B1 100,000 BTU gas furnace and related ICP / Heil / Comfortmaker furnaces using the 1172533 hot surface igniter alongside the VR8205S (1172821) snap-mount gas valve. Confirm your igniter mounting bracket and connector match before ordering. This is a direct OEM replacement for 1172533.

Installation Guide

Safety First — Shut off the gas, disconnect power at the furnace switch and breaker, and verify zero voltage with a multimeter.
Access — Remove the burner-compartment service panel.
Document — Photograph the igniter position, bracket orientation, and wiring connector before disconnecting.
Remove — Unplug the igniter connector, remove the mounting screw, and carefully withdraw the old igniter. Handle only by the ceramic base — never touch the element.
Install — Mount the new igniter in the exact original position so it sits in the burner flame path, reconnect the wiring per your photo, and secure the screw without over-tightening.
Test — Restore gas and power, call for heat, and confirm the igniter glows, the burners light, and flame is sensed.

Signs You Need a Replacement

No heat — inducer runs but burners never ignite
Igniter element is cracked, broken, or pitted
Igniter does not glow when energized
Furnace locks out after several failed ignition attempts

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 T8MPN100J20B1 — OEM 1172533 HSI | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T8MPN100J20B1 — OEM 1172533 HSI | 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 T8MPN100J20B1 — OEM 1172533 HSI | 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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