Enhanced System Efficiency: Delivers precise temperature data to the control unit to optimize fuel consumption and minimize emissions

allowing the technician to calibrate exactly when the second stage engages relative to the first

This specific 12-series model is factory-calibrated for vertical mounting only

25" in length

Armstrong Furnace R38999D020 Heat Exchanger THPU32HP7Y Enhanced System Efficiency: Delivers preciseThe Armstrong Furnace R38999D020 Heat Exchanger is a high performance OEM replacement part engineered specifically for technical efficiency and long term reliability in Armstrong, Allied, and Concord heating systems. Constructed from premium grade stainless steel, this S S Heat Exchanger provides exceptional resistance to corrosion and rust, ensuring it can withstand the intense thermal cycles of a high demand furnace. With its 6 burner tube