What is the difference between air to air heat pump and air to water heat pump?
Air-to-air heat pumps and air-to-water heat pumps are two types of heat pump systems used for heating and cooling buildings. Air-to-air heat pumps: An air-to-air heat pump system transfers heat between the air inside a building and the air outside. The system consists of an indoor unit, which is usually mounted on a wall or floor, and an outdoor unit, which is installed outside the building. During the heating cycle, the indoor unit draws heat from the outside air and transfers it into the building. During the cooling cycle, the indoor unit removes heat from the indoor air and releases it outside. Air-to-water heat pumps: An air-to-water heat pump system transfers heat between the air outside and a water-based heating system. The system consists of an outdoor unit, which is installed outside the building, and a heat exchanger, which is installed inside the building and connected to the heating system. During the heating cycle, the outdoor unit draws heat from the outside air and transf...