What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T8MPL100F20B1 — HSI & Gas Valve Kit | 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 T8MPL100F20B1 — HSI & Gas Valve Kit | 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 T8MPL100F20B1 — HSI & Gas Valve Kit | Ships Today

Name: Tempstar Hot Surface Igniter for T8MPL100F20B1 — HSI & Gas Valve Kit | Ships Today
Brand: Tempstar
SKU: 1172533-GEN
Price: 38.95 USD
Availability: InStock

SKU: 1172533-GEN Brand: Tempstar

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Overview

This OEM hot surface igniter (part #1172533) is the ignition source for your Tempstar T8MPL100F20B1 gas furnace, paired here with the matching VR8205S snap-on gas valve (part #1172821). On each call for heat the control board energizes the igniter, which glows white-hot to light gas at the burners. Hot surface igniters are brittle silicon-carbide or nitride elements that crack from thermal cycling, oils from bare fingers, or vibration. When the igniter fails, the draft inducer runs but the burners never light, and the furnace eventually locks out after several failed ignition attempts. Replacing the igniter together with the gas valve restores dependable, clean ignition.

Specifications

Spec	Value
Igniter Part Number	1172533
Gas Valve Part Number	1172821 (VR8205S Snap)
Type	Hot Surface Igniter (HSI)
Brand	Tempstar (ICP / Heil)
Voltage	120V
Fit	OEM Direct Replacement

Compatibility

Direct OEM fit for the Tempstar T8MPL100F20B1 furnace and shared across ICP-built Tempstar, Heil, Comfortmaker, and Arcoaire furnaces using the 1172533 hot surface igniter and the Honeywell VR8205S snap-mount gas valve. Confirm your igniter mounting tab and valve connector style before installing.

Installation Guide

Safety First — Shut off the gas supply and disconnect furnace power, then verify zero voltage with a multimeter.
Access — Remove the burner-compartment service panel.
Document — Photograph the igniter bracket, gas valve wiring, and gas line connections before disconnecting.
Remove — Unplug the igniter harness and unscrew the igniter, handling it only by the ceramic base; disconnect the gas line and wiring to swap the valve if replacing it.
Install — Mount the new igniter without touching the element, then thread in the gas valve and reconnect gas and wiring per your photo.
Test — Restore gas and power, watch for a clean glow and burner ignition, and leak-check all gas joints with soap solution.

Signs You Need a Replacement

Inducer runs but burners never light and the furnace locks out.
Igniter shows visible cracks or no longer glows.
Repeated ignition retries before a successful or failed light.
Delayed ignition with a rollout or rumble at 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...

$38.95

Frequently Asked Questions

Does this Igniter fit my Tempstar T8MPL100F20B1 — HSI & Gas Valve Kit | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T8MPL100F20B1 — HSI & Gas Valve Kit | 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 T8MPL100F20B1 — HSI & Gas Valve Kit | 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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