Description
The Armstrong Furnace R38999D018 is a stainless steel (SS) heat exchanger designed as a direct OEM replacement for compatible Armstrong Furnace systems. Built with stainless steel construction, this heat exchanger is engineered to withstand the high-temperature demands of residential and light commercial furnace applications while offering superior resistance to corrosion, cracking, and thermal fatigue.
Key Features
- Stainless steel construction for enhanced durability and corrosion resistance
- OEM-quality replacement part designed for Armstrong Furnace systems
- Engineered for reliable heat transfer performance
- Helps maintain system efficiency and safe furnace operation
- Designed to resist thermal fatigue from repeated heating and cooling cycles
Why Replace Your Heat Exchanger?
A cracked or failing heat exchanger can allow combustion gases — including carbon monoxide — to mix with conditioned air, posing serious safety risks. Replacing a worn heat exchanger with a quality stainless steel unit like the Armstrong R38999D018 restores safe, efficient furnace operation and extends the service life of your heating system.
Application
- Compatible with select Armstrong Furnace models (verify compatibility with your unit’s model and serial number before ordering)
- Suitable for residential and light commercial furnace applications
Ordering Information
- SKU: R38999D018
- Brand: Armstrong Furnace
- Material: Stainless Steel







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