The TIGK-HP heat pump heat recovery ventilation units are designed to achieve high indoor air quality as well as energy saving. When heat transfer is done with air-to-air heat recovery plate heat exchangers used in TIGK-HP devices, fresh air is obtained at room temperature thanks to the heat pump. Standard heat recovery devices provide an average blowing temperature of 30°C in summer and 12°C in winter and these temperatures can disturb the person in terms of comfort. Heat pump heat recovery devices, thanks to the heat pump, 20°C in summer, 25°C in winter fresh air blowing temperature can be obtained.