Air to Water Heat Exchanger 20x20 1" Copper Ports

AB Air to Water Heat Exchangers designed with high-quality aluminum fins and seamless copper tubes. Despite a fin density of 12 fins per inch, there is low flow resistance. Our models, ideal for both residential and commercial applications, can be used with sources of hot water to create hot air, such as indoor boilers, outdoor wood boilers, natural gas boilers, propane boilers, oil boilers, electric boilers and other hot water heaters or furnace heat exchangers.

  • Depending on the application, this heat exchanger can produce 65kBtu to 190kBtu per hour. 
  • 1" copper sweat ports,12 aluminum fins per inch and 3 rows of 3/8" seamless copper tubes
  • Perfect for outdoor wood furnaces, residential and commercial heating and cooling, forced air heating, hybrid systems, air conditioning, dehumidification, inverter cooling and so on.
  • 1-year warranty against manufacturer's defects and is ETL listed

Product Information

HTL20x20 Fitting Size
Design Pressure
160,000 Btu Rating
175psi @ 350F

Test Pressure

3 rows of 3/8", copper

12 per inch, aluminum Materials
Steel, Copper, Aluminum
Min. Operating

Max. Operating

20" x 20" x 3.5"

*Capacity is based on 180F boiler output

Water to Air Heat Exchanger Size Choosing Guide.pdf
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.