I. What is the principle for heat pump absorbing energy?
The heat pump unit equipped with an endothermic medium called refrigerant, which is lower than 20 degrees below zero in liquefaction state and has temperature difference with the outside temperature. Therefore, the refrigerant can absorb the external heat energy, evaporate and vaporize inside the evaporator, raise the temperature of the refrigerant through the work of the compressor in the heat pump unit. And then transform the refrigerant from the vaporization state to the liquefaction state through the condenser. During the transformation process, a large amount of heat is released, which is transferred to the reserve water in the water tank to raise the temperature of the water. As high as the purpose of hot water production, this is the unique feature of the product, but also the reason for market potential.
J. There are heat exchange in heat pump units. Will it has large electricity consumption for operation?
Electricity is used to drive heat pump to absorb heat from the outside environment and release heat energy to heat hot water instead of directly heating water with electricity, as is the case with conventional electric water heaters.
K. What are the advantages of heat pump units comparing with other heating heating modes?
Heat pump unit is high efficiency, energy saving, environmental protection and safety. No flammable and explosive gases, no electrical driving elements, absolute safety, no waste gas, waste water, environmental protection. The annual average operating cost of heat pump unit only needs 1/4 of direct electric heating, 1/3-1/2 of fuel and gas heating, and 1/1.5 of conventional solar energy.
L. What are the initial investment and payback?
The initial investment of heat pump units will be slightly higher than that of oil-fired and gas-fired boilers, but due to its special energy-saving effect, the cost will be recovered within one and a half years by energy-saving methods. The service life of boilers and other heating methods is generally only five years, while that of heat pump units can be as long as fifteen years. Air source heat pump water heater saves running cost one year comp ared with diesel boiler.