How to Choose an Air Conditioning, Cheap vs Expensive

How to Choose an Air Conditioning, Cheap vs Expensive
How to Choose an Air Conditioning, Cheap vs Expensive

Choosing an air conditioner should be done with care. If at first we are thinking about the price at the beginning, you should know that brand air conditioners offer very important advantages compared to no name.

What is the biggest problem with cheap air conditioners?

If we overcome many other disadvantages encountered in cheap air conditioners, the biggest disadvantage is the lack of spare parts.
I told the tutorial what I had with an air conditioner bought from Romstal.
It broke down after nearly 3 years of operation and no one was able to fix it. Although I called 3 teams, none of them managed to fix it because it had the motherboard on the burned external unit.
To order the plate from Romstal, it costs me half as much as I gave up, an investment too big in an old 3 machine.
Inverters are much harder to repair than old ON / OFF devices. That's why you have to make sure before you buy an air conditioner that the store can provide Service and spare parts and outside the warranty period.

Advantages of a company air conditioner

1. First of all, the network of service providers and repair specialists
2. Inverters are harder to repair and that's why it's important to have parts
3. The specifications are guaranteed and you can be sure it was not lying in the technical data sheet
4. Extra features
5. Quality of materials
6. quietness
7. reliability

Additional features encountered on more expensive air conditioners

1. Automatic multi-directional and multi-speed airflow control
2. Direct or indirect air jet depends on your preference
3. IR sensors (magic eye) that measure the temperature throughout the house
4. Air treatment or ionization (plasma, ionization, devirusation)
5. Programming the machine over the hours, days, week
6. Easy interior cleaning (fan and condensate tray)
7. Expensive air-conditioners (firm) are much quieter
8. Businesses are economical (real, not just on paper)
9. The more expensive air conditioners do not dry the air so much
10. The company air conditioners do not have strange odors (better materials)

If you want to heat your winter with air conditioning

I can guarantee that you can warm up in the winter with air conditioners, provided you have a very well-insulated home / apartment and the air conditioner is good.

I refer to the fact that air conditioners are normally designed for summer operation. In winter the circuit is turned and the air conditioner can put the heat in the house.

The problem occurs when the outside is very cold and the compressor can no longer do its job as the world.

For the winter season there are air conditioners with stronger and crankcase compressors that allow quick thawing and water removal until it is not frozen. You hear well, these machines freeze in the winter when the outside is moist.

The devices that I recommend below work well in both winter and summer.

If you still want to choose other appliances, and want to use them in the winter; Look carefully at SCOP or COP to get the highest values ​​and look at the maximum / nominal and minimum power of the appliance on heating at different outside temperatures. As a benchmark, some good values ​​are COP 5 and 6 KW power for an 12000 BTU.

If you have questions about winter heating with expensive cheap vendors, ask questions in the comments section


Apparatus for cold summer and winter heat (at -25 degrees)

LG Prestige Air Conditioner (my recommendation)

Air conditioner Mitsubishi Electric Kirigamine Hara (Similar to mine)

Daikin Ururu Sarara air conditioner (Very good but too expensive)

Air conditioning Gree U CROWN (Chinese but very good)

How to choose an air conditioner, cheap vs expensive - video tutorial

Related Tutorials

About Cristian Cismaru

I like everything related to IT&C, I like to share the experience and information I accumulate every day.
Learn as you learn!


  1. 96% of what you said there is ………… I install air conditioners for years ,, with washing… a device does not do it alone ,, it is done by a specialist, indeed at the inverter there are big problems, if it comes out of warranty and breaks board, you better get another ,,, ,, the laptop remains without TUS, as much as I would have to write about air conditioning A> C

  2. Thanks for the Cristi tutorial; It even caught me well because I was in the dilemma of what kind of device to take.

  3. Hello

    I read your message that is very well explained.

    My apartment is detached is located on 2 parts:
    - on the south is the kitchen and living room where the sun actually heats from 10 am to 18 pm.
    -the north are 2 sleeping rooms and just in the evening after 19 is in the sun.
    On very hot days / heat and I and 27 degrees in the north; On the south even more.
    I analyzed to place the Z-shaped lobby and the flow to be directed north.
    For my apartment a 12000, 15000 BTU would be enough?
    I do not want to have 18 degrees inside; But be acceptable because when it's hot it's hard to resist.


    • I think a 50mp apartment gets a good 12000.
      Even if it does not manage to cool under 20 degrees, it will surely make 22-23 degrees, and will dehumidify the air, which will automatically create the feeling of comfort.

      • About 18000 is ok on that surface, but anyway 21 22 grades is ok. I would not give up air conditioning below. Then when you get out too hot

  4. Although the tutorial is good from a practical point of view, things are totally different. From my point of view, investing tens of millions of lei in air conditioners is not justified, unless money is not a problem. First of all basic functions have up and cheap AC, the rest are options that most people do not use, or are not necessarily necessary. I have two cheap ACs fitted now 8 years and are doing very well today, provided the condition is to be maintained (filters washed, filled coolant, etc.).
    Secondly, if it is to break down, the cheap and the expensive AC will break down, it also depends on everyone's luck and if you no longer have a guarantee for it, think about how much the repairs cost for an expensive AC (parts + labor). Regardless of whether you buy a cheap or expensive CA, I think it is more important to make the purchase from a company that is serious and has a long history "in the field of work" in the city where you live.

  5. Cristi Hello!
    I want to ask you to look at the technical characteristics of this air conditioner, Vivax, "made in China" and tell me
    Your sincerity, whether it's worth it or not. It's about the majority of the functions that you talked about in your tutorial.
    I mention that I have an apartment with 2, detached, 52 m square area. I intend this device also to use
    Winter time for heating the house.
    product link: ""

    • The specifications are not complete, and I can not figure out the site. Talk to the shoppers or look for the technical data sheet on the device.
      Repeat, the cold make all the appliances, with the heat in winter is harder.
      Regarding heating a 2 apartment with 52 mp rooms, I do not know what to tell you. If you have insulation on the block it can go.
      You should have close to 8 KW max on the heating in that air and keep at least 5-6 KW below -10 degrees celsius, so air conditioners lose their efficiency when the temperature drops. Good machines go into parameters and at -15 degrees celsius.
      When heating on "all winter" with air conditioning we must take care of how well insulated the house or apartment.
      Like heating over transition (October, November, December, March) goes anywhere. With January and February it's harder if you do not have a very well-insulated home and very good air.
      I warm myself with air because I have a well-insulated house, 27cm polystyrene and basalt to the walls, 25 cm basalt ceiling, floating screed with extruded 5 cm, windows with 3 glass sheets. Before the Mitsubishi FH-35VEHZ we have a device from Romstal by 18000 btu that made its face, but in January and February it was very noisy, both internal and external.

      • Thanks for your advice!
        I come back with a few additions, from the technical file, which I just found on the net. Like most "Chinese" technical details are completely missing.
        The apartment has good insulation, insulating windows, flooring under parquet / tiles.
        The hall has 7-8 m length and 1-1,5 m width, and all the doors from the rooms open in this hallway, I want to mount the appliance on the lobby to get the hot / cold air in all the rooms

        Power Cooling kW 1.83 / 5.28 / 6.12
        Warming kW 1.40 / 5.57 / 6.74
        SEER W / W 6.6
        PURPOSE W / W 4.1
        Power consumption Cooling kW 1,643
        Warming kW 1,542

        Operating temperature range ° C -20 ≤ T ≤ 50

        • It may go, depending on the insulation, how well it manages to keep the heat in the house.
          The question mark is in January and February, which are very cold.
          From the specifications, the device is good, but it is up to now if the manufacturer was honest in the technical data sheet.

  6. Pop Dacian said

    What kind of Mitsubishi and what model? Is it worth the difference that is double that of an inexpensive one?

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