Air-to-water heat exchangers are devices that transfer heat from the air in an environment to a water system. This system is typically used for heating or cooling purposes by transferring the heat or coldness from the air to the water. Air-to-water heat exchangers are widely used, especially in HVAC (Heating, Ventilation, and Air Conditioning) systems.

Air-to-water exchangers facilitate heat transfer between air and water and are commonly utilized when water needs to be heated or cooled.