Heat recovery refers to various methods for utilizing heat that occurs in the form of waste heat in a technical process or a building. This heat can be transferred to another colder medium through a heat exchanger or to a medium with a higher temperature through the use of heat pumps, although this requires additional energy input. The main advantage of heat recovery is the increase in efficiency, which brings both ecological and economic benefits. For example, the use of heat recovery applications can reduce energy consumption and the associated energy costs.