The Heating Supply Store
Water to Air Exchangers (Hot Water)
Just like it sounds, hot water runs through the tubes of a hot water coil to heat the air. As the cool entering air passes over the hot fin surface created by the hot water running through the tubes the air is then heated. These coils are usually constructed using 1 or 2 rows of tubes but can be built with more depending on the application.
Water to Air Exchangers (Chilled Water)
Just the opposite happens during the heat exchange of a chilled water coil. As cold water passes through the tubes cooling the fin surface; the warm entering air is then cooled as it passes over the fin surface of the coil. These coils are also often used to remove moister or dehumidify the air passing through. Chilled water coils usually require more rows of tubes to meet the performance desired, anywhere from 2- 12.
We offer a wide variety of sizing options for both hot and chill water coils to make sure your coil is able to meet the exact performance criteria you are looking for.