What are the specs for this Heat Exchanger?

The correct replacement for Goodman model GDS80703ANA Furnace — 2921306S 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 Goodman equipment which lists the model number GDS80703ANA Furnace — 2921306S.

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.

Is this heat exchanger compatible with Bryant or Payne systems too?

Many Goodman 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.

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Goodman

OEM Goodman Heat Exchanger for GDS80703ANA Furnace — 2921306S

Name: OEM Goodman Heat Exchanger for GDS80703ANA Furnace — 2921306S
Brand: Goodman
SKU: GOODMAN-10304
Price: 574.95 USD
Availability: InStock

SKU: GOODMAN-10304 Brand: Goodman

$574.95 $749.95

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Goodman 2921306S Heat Exchanger

The Goodman 2921306S is a genuine OEM primary heat exchanger assembly built for the GDS80703ANA gas furnace. The heat exchanger is the heart of the furnace — burner flames heat its steel tubes while the blower passes conditioned air across the outside, transferring heat to the home while keeping combustion byproducts safely separated from the airstream. A cracked, rusted, or perforated exchanger is a serious safety concern because it can allow carbon monoxide to mix with supply air, so a confirmed failure means replacement, not repair.

Specifications

OEM Part Number: 2921306S
Type: Primary tubular/clamshell heat exchanger assembly
Function: Transfers combustion heat to airflow while isolating flue gases
Fits: Goodman GDS80703ANA and compatible 80% AFUE furnaces
Equipment: Gas furnace primary heat exchanger

OEM vs. Generic

A heat exchanger is a certified, pressure-tested combustion component — there is no legitimate universal equivalent. This genuine Goodman OEM assembly matches the exact tube geometry, burner alignment, and cabinet fit the furnace was engineered and safety-listed with. Installing anything other than the correct OEM exchanger can void warranties and compromise safe operation.

Installation

Difficulty: Advanced — professional installation required (3–5+ hours). Replacing a heat exchanger involves removing the burners, gas valve, inducer, and often pulling the entire cell from the cabinet, then re-verifying gasket seals, gas pressure, temperature rise, and combustion draft. This work must be performed by a licensed HVAC technician with combustion analysis tools and a CO check. Given the age and labor involved, compare the total repair cost against furnace replacement before proceeding.

Genuine OEM safety component. Confirm your model and existing part number before ordering.

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 Goodman Heat Exchanger for G...

$574.95

Frequently Asked Questions

Does this Heat Exchanger fit my Goodman GDS80703ANA Furnace — 2921306S?

Yes. This is the factory-specified OEM heat exchanger for the Goodman GDS80703ANA Furnace — 2921306S. 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 Goodman GDS80703ANA Furnace — 2921306S?

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 Goodman 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 Goodman 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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