What igniter fits my Tempstar furnace?

The correct replacement for Tempstar model T8MPL100J20B2 — HSI 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 T8MPL100J20B2 — HSI 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 T8MPL100J20B2 — HSI Kit | Ships Today

Name: Tempstar Hot Surface Igniter for T8MPL100J20B2 — HSI Kit | Ships Today
Brand: Tempstar
SKU: 1172533-GEN
Price: 34.95 USD
Availability: InStock

SKU: 1172533-GEN Brand: Tempstar

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Overview

This is the genuine OEM hot surface igniter (HSI, part number 1172533) for the Tempstar T8MPL100J20B2 gas furnace. The igniter glows red-hot when the control board energizes it, lighting the gas at the burners during each heat cycle. Hot surface igniters are brittle and wear out from repeated thermal cycling — a hairline crack or burned-through element will leave the furnace unable to light. This listing also covers the related Honeywell VR8205S snap-mount gas valve (part number 1175705) used in the same ignition system, so technicians can source both ignition components for the model in one place. Symptoms of a failed igniter include the inducer running and the igniter never glowing, or glowing weakly without lighting the burners.

Specifications

Spec	Value
Igniter Part Number	1172533
Gas Valve Part Number	1175705 (Honeywell VR8205S)
Type	Hot Surface Igniter (HSI)
Brand	Tempstar (ICP / Heil family)
Operating Voltage	120V
Valve Type	Snap-mount, 24V (VR8205S)
Fitment	OEM exact-fit

Compatibility

Designed for the Tempstar T8MPL100J20B2 furnace and other ICP / Heil / Comfortmaker / Tempstar models using this HSI and the Honeywell VR8205S gas valve. Confirm your igniter terminal style and valve model before ordering.

Installation Guide

Safety First — Disconnect power and shut off the gas supply, then verify zero voltage with a multimeter.
Access — Remove the burner-compartment service panel.
Document — Photo the igniter wiring and gas valve connections before disconnecting.
Remove — Unplug the igniter harness and unscrew the igniter bracket; handle by the ceramic base only, never the element.
Install — Mount the new igniter without touching the element, reconnect the harness per your photo.
Test — Restore gas and power, then watch a full ignition cycle to confirm a clean glow and burner light-off.

Signs You Need a Replacement

Igniter never glows on a call for heat
Visible crack, blister, or burned-through element
Furnace locks out after several failed ignition attempts
Weak orange glow that fails to light the burners

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 T8MPL100J20B2 — HSI Kit | Ships Today?

Yes. This is the factory-specified OEM igniter for the Tempstar T8MPL100J20B2 — HSI 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 T8MPL100J20B2 — HSI 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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