Description
The Rheem-Ruud AS-104120-02 is an OEM replacement heat exchanger engineered to restore peak thermal efficiency in compatible Rheem and Ruud heating systems. Designed as a direct-fit replacement, this heat exchanger ensures proper combustion gas containment and efficient heat transfer, helping to maintain safe, consistent indoor comfort.
Key Features
- OEM replacement part designed for compatible Rheem and Ruud heating equipment
- Engineered for reliable heat transfer and combustion gas separation
- Direct-fit design simplifies installation and reduces downtime
- Built to Rheem-Ruud quality standards for long-lasting performance
- Helps maintain system efficiency and safe operation
Why Replace Your Heat Exchanger?
A cracked or degraded heat exchanger can allow combustion gases — including carbon monoxide — to enter the living space, posing a serious safety risk. Replacing a worn heat exchanger with a genuine OEM part like the AS-104120-02 restores the critical barrier between the combustion chamber and the air supply, ensuring both safety and efficiency.
Compatibility
- Designed for use in compatible Rheem and Ruud furnace and heating systems
- Consult your equipment’s service manual or contact Jackson Systems to confirm fitment for your specific model
Application
- Residential and light commercial heating system repair and maintenance
- Ideal for HVAC technicians and service professionals performing furnace repairs







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