Water to Air Heat Exchanger 24x24 1" Copper Ports

The 24" x 24" water to air heat exchanger is designed for transferring heat between hot water and forced air systems in residential and light commercial HVAC applications. It features a 3-row tube configuration with 3/8" seamless copper tubes and aluminum fins to support stable heat transfer performance in heating and cooling systems. The unit is suitable for integration with boilers, outdoor wood furnaces, solar-assisted systems, hydronic heating setups, and other closed-loop hot water applications. Built with copper tubes, aluminum fins, and a reinforced steel casing, the heat exchanger is structured for continuous operation under varying temperature and pressure conditions. The epoxy-coated fin surface helps improve corrosion resistance and surface durability in long-term use environments. Core Specifications Overall Size: 24" x 24" Connection Size: 1" Copper Ports Tube Design: 3 Rows of 3/8" Seamless Copper Tubes Fin Density: 12 Aluminum Fins per Inch Approximate Capacity: 225,000 BTU Maximum Heat Output: Up to 360,000 BTU/h depending on system configuration Fin Coating: Epoxy Resin Coated Aluminum Fins Construction: Copper Tubes, Aluminum Fins, Steel Shell Product Information Model HTL24x24 Fitting Size 1" copper sweat Design Pressure 175psi Capacity* 225,000 Btu Rating 175psi @ 350F Test Pressure 263psi Coils 3 rows of 3/8", copper Fins 12 per inch, aluminum Materials Steel, Copper, Aluminum Min. Operating Temp. 32F Max. Operating Temp. 350F Dimensions Finned Area24" x 24" x 3.5" *Capacity is based on 180F boiler output Water to Air Heat Exchanger Size Choosing Guide.pdf Product Description Heat Transfer Structure The heat exchanger uses corrugated aluminum fins combined with seamless copper tubing to increase the contact surface area between air and fluid. This structure promotes more efficient thermal transfer across the coil while maintaining consistent airflow characteristics within forced air systems. The 3-row coil configuration is suitable for applications requiring higher heat exchange capacity while maintaining a compact installation footprint. Material Construction Copper tubes and aluminum fins are used for their thermal conductivity properties and compatibility with hydronic heating and cooling systems. The steel outer casing provides structural support for the coil assembly, while brazed edge connections help maintain stability during operation. The epoxy-coated fin surface adds protection against wear and environmental exposure, helping reduce fin degradation over time. System Compatibility This water to air heat exchanger can be integrated into a range of hot water heating and cooling systems, including: Outdoor wood furnace systems Boiler-based hydronic systems Forced air heating systems Solar-assisted heating applications Hybrid HVAC systems Air conditioning and inverter cooling setups The unit supports water-to-air heat transfer using circulated hot or chilled water from compatible heat sources. Installation Options The heat exchanger can be installed using different connection methods depending on the system layout and installation requirements. The 1" copper ports support direct piping connections and may be connected using clamps, adapters, or welded fittings where appropriate. Its compact coil design allows installation within duct systems, air handlers, or custom HVAC enclosures. FAQ and Support Tips for mounting Air to Water Heat Exchanger: If your air system has an overheat sensor, be sure to install the Air to Water Heat Exchanger far enough away from it so that the heat from the exchanger won't interfere with the sensor's readings. We have worked with heating systems for over 10 years and are happy to help you with any questions or concerns that you may have. You can email us at support@alfaheating.com or call us at 833-328-6888 for help with your heating projects.