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Furnace heat exchangers transfer combustion heat to circulating air while keeping exhaust gases safely contained. Replacing a cracked or corroded heat exchanger restores heating efficiency, ensures safe operation, and protects the furnace system from performance issues and costly breakdowns.
-10%International Comfort Products 1172642 S.S. Heat Exchanger AssemblySpecial Price $1,807.40 Regular Price $2,006.22Out of stock
-10%Rheem-Ruud AS-58632-85 Heat Exchanger Assembly Stainless SteelSpecial Price $947.19 Regular Price $1,051.38Out of stock
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-10%Reznor 44314 Stainless Steel Heat ExchangerSpecial Price $4,902.69 Regular Price $5,441.98Out of stock
-10%Weil McLain 316-700-065 Heat Exchanger Section 7015Special Price $878.64 Regular Price $975.29Out of stock
-10%Amana-Goodman 2864604S Secondary Heat ExchangerSpecial Price $342.07 Regular Price $379.69Out of stock- -10%Amana-Goodman 2864605S Secondary Heat ExchangerSpecial Price $405.87 Regular Price $450.52Out of stock
- -10%Amana-Goodman 2864606S Secondary Heat ExchangerSpecial Price $506.73 Regular Price $562.47Out of stock
- -56%International Comfort Products 1174417 Secondary Heat ExchangerSpecial Price $1,289.12 Regular Price $2,903.95
- -10%International Comfort Products 1174982 Secondary Heat ExchangerSpecial Price $1,643.41 Regular Price $1,824.18Out of stock
HVAC Furnace Heat Exchanger Replacement Parts
Furnace heat exchangers are designed to safely transfer heat from combustion gases to indoor air without allowing harmful exhaust fumes to mix with the airflow. In heating systems, the heat exchanger plays a critical role in maintaining efficiency, safety, and consistent temperature output.
Heat exchanger parts support proper heat transfer and sealed combustion performance. Primary heat exchanger cells absorb direct burner heat, secondary heat exchangers recover additional heat in high-efficiency furnaces, heat exchanger tubes direct combustion gases through the chamber, and high-temperature gaskets maintain airtight sealing to prevent gas leakage.
Common signs of heat exchanger failure include visible cracks, rust or corrosion, unusual furnace odors, soot buildup, reduced heating efficiency, or frequent system shutdowns. Replacing a damaged heat exchanger restores furnace safety, efficiency, and prevents carbon monoxide hazards.
PartsHnC offers a wide range of furnace heat exchanger parts, including heat exchanger assemblies, heat exchanger cell kits, induced draft and condensing furnace heat exchangers, from leading HVAC brands Lennox, Carrier, Amana-Goodman, and Reznor, with fast and reliable shipping!
FAQs
Can a damaged aluminum heat exchanger be repaired, or should it be replaced?
Aluminum units cannot be reliably welded; replacement is recommended. Stainless steel may allow minor spot repairs.
How do I verify proper heat exchanger sizing for my furnace or boiler?
Check cell number, diameter, and length against manufacturer specs. Ensure compatibility with burners and plates.
How do I fix a leaking gasket on a heat exchanger?
Remove the old gasket, clean mating surfaces, and install a new gasket with correct torque.
Can I reuse old gaskets during a heat exchanger replacement?
No, all gaskets must be replaced to maintain sealing and prevent leaks.
How do I check for airflow or hotspots after heat exchanger installation?
Use temperature probes across cells to detect uneven heating. Ensure baffles don’t block airflow.
How do I replace a cracked heat exchanger?
Shut off gas/electricity, remove old exchanger, and install OEM replacement. Torque bolts and seal all gaskets properly.