Brazetek 17X21 Water to Air Heat Exchanger, 140 kBTU, 1" sweat connections

17X21 Water to Air Heat Exchanger
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For dimensions and unit specifications, please see "Documentation" section below.


Brazetek water to air heat heat exchangers can be used for a wide variety of heating and cooling applications, including:

  • Hot water Heating
  • Chilled Water Cooling
  • Outdoor wood furnaces, boilers, stoves
  • and other liquid to air and air to liquid heat exchange applications


Installing a Y-strainer (brass or bronze) on inlet side of the heat exchanger is highly recommended to reduce maintenance and scale buildup.

Technical Specifications of Brazetek BT-HTL17X21:

  • Max Operating Pressure: 360 psi;
  • Max test. pressure: 435 psi;
  • Max Temperature: 350F;
  • Inlet/Outlet connections & manifold: 1" copper (1-1/8" OD);
  • Tube coil: 3/8" seamless copper;
  • Fins: 0.004" thick aluminum, 12 fins per inch of tube;
  • Casing: 18 gauge heavy duty galvanized steel;


10 years from the date of installation.
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