Why Is Air Energy So Power-consuming?

Before planning to install air energy heating for the first time, many users are most concerned about and most frequently asked questions, "How much does air energy heating cost every day", "Is air energy heating costly", "How much electricity can be saved?".

As long as the air energy heating system is professionally designed and installed by specifications, it must save electricity compared to ordinary electric heating. The power saving effect will also be different depending on the use area, ambient temperature, and house insulation effect.

 

However, many people find that they "consume a lot of electricity" after using air heating and find that those air energy heating systems that are very good at heating but "consume electricity" have the following problems.

1. The air energy heat pump host is unqualified

Due to the rapid development of the air energy hot water heating market in recent years, many assembled machines have appeared. Its characteristics are low price, thin or short materials, and difficult to guarantee performance.

This kind of air energy host has no problem in daily use, but its cop value is 10% or even lower than the host of brand manufacturers, and it will become more and more expensive to use. At the same time, due to the evaporator, condensing heat exchanger and shell of the assembled machine cutting corners, the compressor is inferior, the throttling technology and the electric control board are simple, and frost shutdown and low temperature shutdown and other faults often occur, which will also affect the improvement of energy efficiency ratio. Stability and service life of the unit.

2. Unreasonable air energy heating transmission and distribution system

Many non-professional engineering companies, even if they use high-efficiency brand hosts, but the configuration scheme design of the entire air source heat pump heating system is unreasonable, which will also lead to high power consumption of the air energy heating system. For example, the water pump matching the air source heat pump unit is not properly selected, and the large horse-drawn carriage may cause high power consumption of the entire air energy heating system.

In addition, the terminal heating methods mentioned above are also different, such as radiators and floor heating. Although the same host system, heating area, and heating habits are used, the energy efficiency of the floor heating terminal air source heat pump system is 0.6~1.0 higher than that of the system using radiators, which ultimately leads to the difference of 50% or even 100% in power consumption between the two under the same heating basic conditions.

3. The electric control system of air energy heat pump heating is not advanced

The operating program of the relevant devices in the air energy heating system is an indispensable software of the system, and it and the system-related "hardware" will also affect the power consumption of the air source heat pump heating system.

For example, the control of the defrosting logic by the unit involved in the defrosting process of the system will affect the power consumption of the air source heat pump heating system. The shorter the defrosting time and the cleaner the defrosting equipment, the lower the power consumption of the entire air source heat pump heating system.

In addition, the electric auxiliary heating program will also affect the power consumption of the entire air source heat pump heating system. Some equipment should start electric auxiliary heating at minus 5 degrees Celsius but start at zero degrees. In this state, the air source heat pump no longer absorbs heat from the air but becomes a pure electric heating body. This will increase the running power consumption.

Another very important point is that when the water pump is not running, it will also increase the power consumption of the air source heat pump heating system. The water pump in some air source heat pump heating systems runs continuously, 24 hours a day. At this time, the power consumption of the pump is even higher than that of the compressor. Therefore, the design of the water pump control program is also an important technical link in controlling the power consumption of the air source heat pump heating system.

4. The installation of the air source heat pump heating system is not standardized

"Three points of product, seven points of installation" For a well-configured air source heat pump heating system, if it cannot be installed in a professional specification, the heating system may also have better "power consumption".

Irregular installation of the water pump, unreasonable selection of pipelines, and irregular installation of heating end materials will affect the power consumption of the entire air source heat pump heating system.

The unreasonable number of radiators and the installation of pipelines will lead to uneven room temperatures in each room. Even if the outlet water temperature is increased, it will only increase the overall indoor temperature and cannot solve the room temperature difference phenomenon in each room. On the contrary, making the room temperature standard too high will cause energy loss to a certain extent and increase the user's heating cost.

5. Unscientific use of heating leads to increased electricity bills

Many users want to increase the indoor temperature and arbitrarily increase the outlet water temperature of the air source heat pump, but in fact, the higher the outlet water temperature of the equipment, the better. The scientific use method should set the appropriate outlet water temperature according to the weather conditions: the outdoor temperature is low, and the temperature is lowered on the contrary. The setting of the outlet water temperature will affect the power consumption of the entire air source heat pump heating system.

Finally, it should also be emphasized that another important factor affecting the power consumption of air energy heating is the insulation measures of the user's house. The energy consumption gap between houses with good insulation and houses with poor insulation may reach half or even 40% of the power consumption of the heat pump heating system.