- Select a heat pump with a demand-defrost control. This will minimize the defrost cycles, thereby reducing supplementary and heat pump energy use.
- This section gives a brief introduction to heat pumps. Based on six basic facts about heat supply the value of heat pumps is discussed. It is argued that heat pumps are very energy efficient, and therefore environmentally benign.
An efficient technology
- Energy-saving: the working cost comes as 1/4 that of electric boiler, 1/3 that of fuel boiler and 1/2 that of gas boiler, saving energy much more than that of the solar energy hot water system and presenting a high energy-efficiency ratio and a notable energy-saving effect.
