Air Source Heat pump is a device that transfers the heat energy of low-level heat sources to high-level heat sources. It is also a new energy technology that has received worldwide attention. Air source heat pumps obtain low-grade heat from natural air,  work through electricity, and then provide people with access to High grade thermal energy.
 

     Now the temperature control system has been widely used in aquaculture, which is suitable for areas with large temperature difference in four seasons and is beneficial to fish reproduction.