Carrier 334357-756 Heat Exchanger

The Carrier 334357-756 Secondary Heat Exchanger is a critical OEM replacement part engineered for high-efficiency condensing furnaces. As a genuine RCD part, this stainless steel condensing heat exchanger is designed to capture latent heat from combustion gases, ensuring your Carrier HVAC system maintains its AFUE rating. For contractors performing a furnace heat exchanger replacement, this component provides the precise fit and thermal transfer properties required to restore factory-spec performance. This secondary heat exchanger is manufactured in the USA to meet rigorous OEM specifications, preventing the common issues associated with secondary failure such as excessive condensate buildup or combustion airflow restrictions. Whether you are servicing residential heating equipment or light commercial units, utilizing this Carrier 334357-756 ensures compatibility with existing mounting brackets and collector box assemblies, reducing labor time during teardown and reassembly.

Key Benefits for Technicians

• Direct OEM Replacement: Guaranteed exact dimensional fit for Carrier, Bryant, and Day & Night high-efficiency furnaces.
• Enhanced Thermal Efficiency: Optimized for maximum heat recovery to maintain system performance and fuel economy.
• Durable Construction: Built with corrosion-resistant materials to withstand the acidic environment of furnace condensate.
• USA Manufactured: High-quality RCD parts built to strict ISO Code US standards for reliable operation.
• Non-Hazardous Component: No EPA certification is required for the handling or installation of this mechanical part.

Common Questions

Is the 334357-756 compatible with my specific furnace model?
This secondary heat exchanger is designed for specific high-efficiency Carrier families. Always verify your full model and serial number against the OEM parts list to ensure a proper match before installation.

Does this part include the collector box or gaskets?
This SKU typically includes the secondary heat exchanger assembly. We recommend sourcing new gaskets and a collector box kit simultaneously to ensure a gas-tight seal and proper condensate drainage.

Why should I use a genuine Carrier OEM heat exchanger?
Using genuine OEM replacement parts ensures the pressure switch settings and induction motor curves remain within the manufacturer's safety and performance parameters.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.