An air exchanger and a heat pump are both devices used to control the air and its quality inside a space, but they do not have the same functionalities:
1. **Air exchanger**: Be careful, an air exchanger is not designed to heat or cool the air, it allows you to exchange indoor air and outdoor air while maintaining a comfortable temperature inside the house. It recovers the heat from the outgoing air to preheat the incoming air in winter, and it does the opposite in summer to pre-cool the incoming air. This helps reduce energy loss and maintain good indoor air quality by eliminating contaminants.
2. **Heat Pump**: A heat pump is a heating and cooling system that uses heat transfer principles to extract heat from the outside air and transfer it indoors in the winter to heat the home, and do the opposite in the summer to cool the interior. It can operate reversibly to heat or cool as needed.
Additionally, modern heat pumps often come with humidity control features, which can improve comfort during the summer. This is not a standard feature for air exchangers.
In summary, an air exchanger is mainly used to improve air quality and reduce energy loss, while a heat pump is a heating and cooling system that regulates indoor temperature using outdoor air.