In the past year, air-source heat pump water heaters have drawn more and more attention from new energy industry people with the advantages of all-weather, convenience and energy saving. With the development of air-source heat pump water heaters by many manufacturers producing solar water heaters and increasing the promotion of products , Many dealers and end-consumers repeatedly raise a question: can air source heat pump water heater replace solar water heater?
In answering this question, we think that we should analyze objectively and dialectically the advantages and disadvantages of these two water heaters, and compare the latter to draw the correct conclusion.
First analysis of the advantages and disadvantages of solar water heaters, the main advantages are:
Do not consume conventional energy, safety, environmental protection, use is still convenient.
The disadvantage is:
Affected by the weather, the sun is not enough illumination can not be used, the need for conventional energy assistance;
Up and down the water within a waste of water wasted, the cold area is also due to freeze the pipeline can not be used;
A single installation affect the aesthetics of the building, subject to the property management department.
The advantages of air-source heat pump water heater is:
Not affected by the weather, twenty-four hours at any time to provide hot water;
According to the location of the nearest installation can reduce waste water pipe drainage;
Close to the air-conditioning and installation of the same way, unconditionally accepted by the property management.
The disadvantage is:
Although it is an effective energy-saving product, it still consumes a part of conventional energy (electricity), which is also the reason for its use of regional barriers, that is, it is not available in areas without electricity.
Lower temperature (-10 ℃), its COP value (coefficient of heating performance) is close to equal to 1, no energy saving significance.
Through the analysis of the above advantages and disadvantages, it is not difficult to see that these two kinds of water heaters have their advantages and disadvantages in the use of performance, each with short length. Their mutual relationship should be complementary rather than who should replace whom. Air-source heat pump water heaters can be used in places with relatively high heat demand in large and medium-sized cities in the south of the Yellow River in our country. In rural areas north of the Yellow River, solar water heaters can be used where heating is required in general. Of course, the ideal situation should be the combination of the two under the conditions. If the one-time investment is larger, the effect of energy-saving and environmental protection will be very obvious and the overall economic benefits will certainly be better.
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