20x22 Water-to-Air Heat Exchanger — 1" Copper Outlets, EZ-Install Front Flange (Fits 20"x23" Plenum+)

Designed for use in a 20" x 23" plenum (or larger), this 20x22 water-to-air heat exchanger features outlets that exit the 20" side (shown as the vertical side in photos) and installs easily with the supplied EZ front flange. Performance: GPM 18.3, CFM 2146. Fin area: 20" x 22". Outside dimensions: 20" (width) x 25.5" (Length from Manifold to Base) x 3.5" (Thickness).

Note: there is a 1" frame on the end opposite the outlets that covers the copper elbows and increases the internal plenum length by 1". All exchangers are 3 1/2" thick. Aluminum fins are installed at 12 fins per inch and the coil uses a triple-pass layout with 1/4" copper tubing. The unit includes a flat front-face mounting plate for faster installation and added plenum rigidity.

Outlets are 1" copper and accept either sweat connections or push-fit fittings such as sharkbite's. These exchangers work with chilled water as well as boiler systems and the newer design eliminates the need to bend ductwork for installation. We stock many sizes — always choose the largest unit that will fit your plenum. Limited lifetime warranty against manufacturer's defects (shipping included).