Nordyne Intertherm 903418 Heat Exchanger

Product Description

The NORDYNE INTERTHERM 903418 is a replacement heat exchanger designed for use in residential gas furnaces. The heat exchanger is the primary component responsible for transferring combustion heat to the supply air stream while keeping flue gases isolated from conditioned air. It is a direct OEM-style replacement part intended for installation by licensed HVAC technicians servicing NORDYNE INTERTHERM furnace equipment.

The 903418 heat exchanger is suited for residential heating applications where the original component has reached the end of its service life or has developed cracks, fatigue damage, or corrosion that compromises system safety. HVAC service professionals install this part during furnace repair calls where heat exchanger failure has been confirmed through visual inspection, combustion analysis, or pressure testing.

Key Features

• OEM-style replacement heat exchanger for NORDYNE INTERTHERM furnaces
• Designed to transfer combustion heat to supply air while isolating flue gases
• Direct fit replacement reduces installation time on qualified equipment
• Built to maintain proper airflow and combustion separation integrity

Compatibility

Designed as an OEM-style replacement heat exchanger for NORDYNE INTERTHERM residential gas furnaces. Verify the part number against the furnace nameplate or service documentation before installation to confirm fitment.

Installation Notes

Heat exchanger replacement must be performed by a licensed HVAC technician in accordance with local mechanical codes and manufacturer service procedures. Shut off gas supply and disconnect electrical power to the furnace before beginning disassembly. Inspect burner assemblies, flue connections, and surrounding components for wear or damage while the heat exchanger is accessible. Never operate a furnace with a cracked or damaged heat exchanger, as flue gas intrusion into the air stream presents a carbon monoxide hazard.

Technical Specifications

• Part Type: Heat Exchanger

Standard Information

• Brand: NORDYNE INTERTHERM
• Manufacturer Part Number: 903418