Which Is More Power-efficient, Central Air-conditioning Or Regular Air-conditioning?


At present, ordinary air conditioners have entered thousands of households, and central air conditioners have also begun to move from commercialization to civilian use. Because the central air conditioner appeared in the market, it has become a puzzle for many families to buy. I don’t know which one to buy? Which is more suitable? Here’s to help you solve the confusion when buying air conditioners.

Generally, everyone will use a wall-mounted air conditioner in the living room and wall-mounted in the bedroom. However, data shows that since 2015, central air-conditioning has maintained an average annual sales growth of at least 10%. See, the central air conditioner is a dark horse.

Let me first explain to everyone what is a central air conditioner. The traditional split air conditioner (wall-mounted, vertical cabinet type) is 1 to 1, one outdoor unit corresponds to one indoor unit, and the central air conditioner is one to N, and one outdoor unit is connected to multiple indoor units.

As for why central air-conditioning is installed, some people say so: If we install wall-mounted air conditioners, we will have one in each of our 4 rooms and one in the living room and one in the dining room. This will require 6 outdoor units, and there is not enough space for the outdoor units.

I have children at home and like to run in several rooms. I need to turn on several air conditioners at the same time. It is better to install a central air conditioner.
Now everyone’s living conditions are better, and I want to live more comfortably. Compared with split air conditioners, how comfortable is it to use central air conditioners?

Cooling and heating
Can’t the air conditioner be able to cool and heat? That being said, the comfort of central air conditioning is better.

Beautiful ceiling
The central air conditioner is installed in a concealed manner. The indoor unit, refrigerant pipes, and condensate pipes are hidden in the partial ceiling space, which is integrated with the overall home decoration environment and is more beautiful.

This is something that many people will consider when installing central air conditioners. After spending hundreds of thousands on renovations, they really don’t want the wall-mounted air conditioners to be ruined.

Comfort and beauty are the two biggest advantages of central air conditioning. What I want to say below is that it is both an advantage and a disadvantage-power consumption.
One external unit of the central air conditioner drives multiple internal units. It is difficult for people not to worry about its power consumption, but some people say that it does not consume power.

The compressor of the central air conditioner consumes a lot of electricity when it is turned on, but because it uses an inverter compressor, it saves electricity compared to ordinary air conditioners when used for a long time.

So if you are reluctant to turn on the air conditioner in summer, only turn it on for a few hours when it is very hot, turn on and off frequently in a short time, and use the central air conditioner compressor to keep on, and the power consumption will be large.

But if you have to turn on the air conditioner as long as you are at home in summer, and you can sleep at night without turning off, using central air conditioner will save money.
To put it bluntly, the power-saving mode of central air-conditioning can only be experienced by those who can enjoy it. If you install central air-conditioning to save electricity, you will find that the electricity bill of nearly 1,000 a month is very painful.

Having said that, which one is more power-efficient, central air-conditioning or ordinary air-conditioning? Let’s look at them one by one!

  1. Look at efficiency
    The central air conditioner covers a wide area. Only one central air conditioner and one outdoor unit are needed for multiple rooms. Therefore, the load is low during operation and the efficiency of the whole machine is high. However, if you use ordinary air conditioners, you need to install one in each room, and if multiple air conditioners are used at the same time, the efficiency is very low.
  2. Look at the design and installation
    Split-type spaces are more installed, and central air-conditioning requires higher technology, so it must be completed by a professional construction team.
  3. Look at power consumption
    Many consumers think that central air-conditioning consumes electricity. This is actually a misunderstanding. Generally speaking, the energy efficiency ratio of central air conditioners is above 3.0, while that of ordinary air conditioners is between 2.3 and 2.8. Therefore, this is divided into the following situations. Within the same area, the larger the area, the installation of central air-conditioning will also save electricity. But if the room is small and only uses an ordinary air conditioner, it’s a different matter!
  4. Look at the price and lifespan
    As mentioned earlier, central air-conditioning efficiency, power saving, professionalism, etc., have obvious advantages over ordinary air-conditioning, and the service life is generally 15 to 20 years.
  5. Look at cleaning and maintenance
    Ordinary air conditioners also have many advantages. They are undoubtedly more cost-effective when they are small in size and only use one room. Moreover, it is very convenient to clean and maintain. However, the central air conditioner requires professional cleaning, which is more difficult, and once damaged, the construction is difficult and expensive.

After reading these pros and cons and weaknesses, let’s summarize:
If the area is not large, there are not many rooms, and multiple rooms are not often turned on at the same time, use a split air conditioner or a split + duct machine.
It is more suitable to use a central air conditioner if the area is large, the rooms are many, the floor height is appropriate, and multiple rooms use air conditioners at the same time.