What are the specs for this Heat Exchanger?

The correct replacement for Lennox model OEM Lennox Heat Exchanger Assembly — 93W52 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 Lennox equipment which lists the model number OEM Lennox Heat Exchanger Assembly — 93W52.

What symptoms indicate I need a new heat exchanger?

Common symptoms that indicate you need a new heat exchanger include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

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Lennox

OEM Lennox Heat Exchanger Assembly — 93W52

Name: OEM Lennox Heat Exchanger Assembly — 93W52
Brand: Lennox
SKU: LNX-93W52
Price: 399.95 USD
Availability: InStock

SKU: LNX-93W52 Brand: Lennox

$399.95 $549.95

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The genuine OEM Lennox 93W52 heat exchanger assembly (also referenced as R42511010) is the core combustion component of your Lennox gas furnace. It transfers heat from the burning fuel to the air moving through your system while keeping combustion gases safely separated from the air you breathe. This assembly is engineered to the exact tolerances of your Lennox equipment for proper airflow, thermal efficiency, and safe operation.

Common failure symptoms: A cracked or corroded heat exchanger may cause a flickering or lifting burner flame, rust or soot streaks, a persistent burning or metallic odor, unusual expansion/contraction noises during heating cycles, or a carbon monoxide detector alarm. Any suspected crack should be addressed immediately, as it can allow combustion gases to enter the airstream.

Why OEM matters: The 93W52 is manufactured to Lennox specifications for metal alloy, weld integrity, and dimensional fit that aftermarket substitutes rarely match. Using the correct OEM heat exchanger preserves your furnace's AFUE efficiency rating, protects any remaining factory warranty coverage, and ensures the safe, sealed combustion your Lennox system was designed to deliver.

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

OEM Lennox Heat Exchanger Assemb...

$399.95

Frequently Asked Questions

Does this Heat Exchanger fit my Lennox OEM Lennox Heat Exchanger Assembly — 93W52?

Yes. This is the factory-specified OEM heat exchanger for the Lennox OEM Lennox Heat Exchanger Assembly — 93W52. 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 heat exchanger on my Lennox OEM Lennox Heat Exchanger Assembly — 93W52?

Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.

What symptoms mean I need a new heat exchanger?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this heat exchanger compatible with Bryant or Payne too?

Many Lennox 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 Lennox heat exchanger?

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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OEM Lennox Heat Exchanger Assembly — 93W52

Shipping Information

Return Policy

Frequently Asked Questions