Field measurement and analysis on air-source heat pump heating system with radiator for a rural house in Beijing area

Tests the air temperature in rooms, temperature of the radiator surface, temperature of radiator supply and return water, heat supplied for the rural house and the power consumption of the system in the operation period. The results show that the system can meet the need of indoor thermal comfort. The supply and return water temperature are low, and the temperature difference of supply and return water is small. The COP is about 2.8 in the test period and it has advantage of energy saving potential compared with electric boiler plus radiator heating system.