What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T8MPN100F14B1 — HSI Ignition Replacement | 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 T8MPN100F14B1 — HSI Ignition Replacement | 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 T8MPN100F14B1 — HSI Ignition Replacement | Ships Today

Name: Tempstar Hot Surface Igniter for T8MPN100F14B1 — HSI Ignition Replacement | Ships Today
Brand: Tempstar
SKU: 1172533-GEN
Price: 34.95 USD
Availability: InStock

SKU: 1172533-GEN Brand: Tempstar

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Overview

This OEM hot surface igniter (HSI) is the direct-fit ignition component for the Tempstar T8MPN100F14B1 gas furnace. The igniter heats to over 2,000°F to light the gas burners on each call for heat. When an igniter degrades or cracks, the furnace will fail to light, short-cycle, or lock out after several failed ignition attempts. Replacing a worn igniter restores fast, dependable starts and prevents nuisance no-heat calls. This assembly references OEM part 1172533 (IGNITOR HSI) and is engineered to the exact resistance and mounting specification of the original.

Specifications

Spec	Value
Part Number	1172533
Type	Hot Surface Igniter (HSI)
Brand	Tempstar / Heil / ICP
Application	Gas Furnace Ignition
Related Part	1172821 (Gas Valve / HSI Snap, VR8205S)
Fitment	OEM Direct Replacement

Compatibility

Designed for the Tempstar T8MPN100F14B1 furnace and shared ICP/Heil/Comfortmaker platforms using the same ignition system. Always confirm your model and part number before ordering.

Installation Guide

Safety First — Disconnect power at the furnace switch and breaker; verify zero voltage with a multimeter and shut off the gas supply.
Access — Remove the furnace burner compartment service panel.
Document — Photograph the igniter mounting and wiring before disconnecting.
Remove — Unplug the igniter connector and remove the mounting screw(s); lift the brittle igniter out carefully without touching the element.
Install — Mount the new igniter handling it only by the ceramic base, then reconnect the harness per your photo.
Test — Restore gas and power, then run a heat cycle to confirm the igniter glows and the burners light promptly.

Signs You Need a Replacement

Furnace blower runs but burners never light
Visible cracks, blistering, or white spots on the igniter element
Repeated ignition lockouts or short-cycling on a call for heat
No glow visible through the sight window during startup

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...

$34.95

Frequently Asked Questions

Does this Igniter fit my Tempstar T8MPN100F14B1 — HSI Ignition Replacement | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T8MPN100F14B1 — HSI Ignition Replacement | 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 T8MPN100F14B1 — HSI Ignition Replacement | 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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