As a clean energy equipment, air energy heat pumps have good performance in terms of energy saving, comfort, environmental protection, safety and stability. Nowadays, the air energy heat pump can solve the problem of the user's refrigeration, heating and domestic hot water at the same time, and has become the fragrant food of the HVAC market, attracting a large wave of water heater fans to buy, and the results of the feedback have also made the user very satisfied. However, air energy water heaters also have many advantages, why has it not flourished at home? It turns out that in the user's mind, the air energy water heater has 7 major shortcomings, which makes some users prohibitive.
1, do not save water
Air energy water heaters usually need to do hot water circulation, by adding circulating water pumps, so as to achieve the effect of rapid hot water at the end and hot water at any time. If you do not open the circulating water pump, the use of hot water needs to drain the cold water in the water pipe, according to the distance of the hot water point at the end of each bathroom from the heat source, combined with the size of the apartment, it is about possible to put 1-3 small buckets of cold water to produce hot water. If the circulating water pump is turned on, the cold water does not have to be discharged and no cold water is wasted.
However, now the living standard is constantly improving, people's demand for hot water comfort is getting higher and higher, indoor hot water circulation has become inevitable, but almost all larger apartments will be through the installation of zero cold water and hot water equipment, hot water storage tank or drip pump to achieve the purpose of hot water circulation, so the problem of not saving water is not a problem. Moreover, the installation of ordinary water heaters also has the problem of putting cold water for a period of time.
2, noisy
The air energy water heater obtains the heat in the environment by working on the compressor, thereby heating the cold water in the tank and producing stable hot water for the user to use, so when the heat pump host is running, the compressor will emit a buzzing sound, especially at night, the sound will be greater, and it is difficult for users with shallow sleep or neurasthenia to endure.
However, the air energy water heater has installation location requirements, and the heat pump host has a unique noise reduction technology support. Usually, the heat pump host of the air energy water heater is installed in good ventilation, and it will not affect the location of the home or neighbors, and the noise generated by the host will not affect the indoor personnel rest. In addition, the technology of air energy water heaters is constantly improving, and the application of frequency conversion technology and the use of sound insulation and noise reduction measures have greatly reduced their noise values and will not affect the rest of indoor personnel.
3, do not save electricity
After the air energy water heater is installed in the circulation pipe, the cold water in the pipe will flow back into the storage hot water tank each time it is used, and the water temperature will fluctuate (down 3-5 °C). In the winter, although the hot water pipe is insulated, the ambient temperature is low and the temperature drop is still obvious, so the air energy water heater needs to be started repeatedly, thereby increasing power consumption.
However, the air energy water heater has time control and intelligent control, you can set the heating time period, thereby reducing the waste of electricity, but also through the intelligent control program according to their own needs in time to adjust the working time of the air energy water heater, coupled with the air energy water heater compressor from the fixed frequency upgrade to frequency conversion, but also added jet enthalpy technology, power saving significantly improved.
4. Poor insulation
As a heating equipment, the air energy water heater does not have the ability to keep warm, mainly through the storage of hot water tanks and pipe insulation to improve the thermal insulation performance of hot water, disguised to play a role in saving electricity. If the thermal insulation of the storage water tank is relatively poor, the water temperature will drop very quickly, especially in the winter, the host is placed outside at a lower temperature, and more heat is lost from the pipeline. Therefore, the air energy water heater has poor insulation and high energy consumption.
The insulation difference of the air energy water heater depends on the thermal insulation of the hot water storage tank and the insulation of the pipe. When purchasing a storage hot water tank, you need to pay attention to both to ensure that the material of the water tank is good, but also to ensure that the insulation of the water tank is good, and when doing pipeline insulation, the material of the insulation sleeve needs to have good thermal insulation, flame retardancy and environmental protection, in the construction time, do a good job in the details of the pipeline contact processing, leave no gaps, and then wrap a layer of anti-corrosive material on the outside of the insulation sleeve, thereby improving the thermal insulation of the air energy water heater system.
5, the price is expensive
A complete set of air energy water heaters need air energy heat pump host, hot water storage tank, water pump, time controller, etc. combination, the general market retail price is more than 5,000 yuan, and the general water heater is also 1-2 thousand yuan a piece, it can be seen that the price of air energy water heater is not dominant.
However, the air energy water heater can provide stable domestic hot water, 24 hours have hot water supply, each hot water point can do rapid water, greatly improving the comfort of life. Moreover, the environmental protection and safety of the air energy water heater is also very high, the use of electric energy heating, will not produce harmful gases and solids to the environment, the use of hydropower separation technology, there is no risk of electric shock indoors, there will be no hidden dangers of gas poisoning.
6. Take up space
The large parts of the air energy water heater are mainly heat pump host and hot water storage tank, installation requires a lot of space, the location of the ordinary reserved water heater can not meet the installation of the air energy water heater, if installed in other locations will also occupy a lot of space, affecting the placement of other furniture, in the inches of land in the housing, occupying a square is tens of thousands of costs, so many people are not willing to occupy too much indoor space because of the problem of water heaters.
For the problem of air energy water heater occupying space, it can also be solved through reasonable planning. The size of the heat pump host is similar to the outdoor unit of the ordinary air conditioner, which can be placed in the external machine position of the air conditioner, and if there is enough space, the hot water storage tank can also be placed in the outer machine position, so as not to occupy the indoor space. If the storage hot water tank can only be placed indoors, the diameter of the general storage hot water tank is about 60 cm, and the actual space occupied is not large, and some storage hot water tanks can also be hung on the wall, but they need to be load-bearing. Of course, conditional air energy water heaters can be placed on the roof, on the ground or in the location of hot water equipment reserved by the developer.
7. High maintenance costs
Some niche brand air energy water heater manufacturers, they do not have an independent after-sales team, maintenance can only be subcontracted to other companies, which causes the user's maintenance costs to increase. And the price of the internal parts of the air energy water heater is also relatively expensive, if the main components are broken, the cost of replacing the accessories is enough to buy a new water heater.
Therefore, when purchasing air energy water heaters, it is necessary to choose a company of large brands, have their own after-sales team and construction team, and regularly maintain the air energy water heater, thereby reducing the failure rate and improving the service life of the air energy water heater.
summary
Air energy water heaters have the above 7 disadvantages, so they have not flourished in the home. However, as the technology of air energy water heaters continues to advance, most of the problems that users are worried about can be solved. And the air energy heat pump is constantly developing, now the air energy heat pump two-generation or triple supply of continuous use, so that the air energy heat pump technology has a new leap, in the air energy water heater technology field has also been improved, so that the advantages of air energy hot water become greater, combined with the implementation of "coal to electricity" and the convenience of electric energy in rural areas, the use of air energy water heaters will become more and more extensive.