How To Choose The Right Aircon Size & BTU?

Air conditioners are important machines that we need installed to regulate indoor temperatures keeping homes and buildings. They make the temperature to be warm when it is cold and cool when the heat goes up. There are many different types of aircon's in the market and finding one should not be a daunting task. However, not all brands and models depict high quality. It is therefore important to keenly review any aircon before purchasing and installing them. Apparently, it has also been proved that the size of the air conditioner is very important. There are also factors that you are supposed to consider so that you get the ideal aircon size that will serve you appropriately.

Air Con

Mitsubishi, Daikin and Panasonic are some of the most reputable aircon manufacturers in the world and they are known to produce aircon's that have high energy rating for efficiency. These brands manufacture aircon's of different sizes to suit different functions. However, Mitsubishi has been preferred by many homes and industries in Singapore because of sheer reliability. Mitsubishi heavy industries have very popular in the air conditioning systems for a long time. The brand has been introducing modernized air conditioning systems to suit the present life. Most of their aircon units are not only efficient, but also reliable and durable. To date, MHI aircon systems are considered as the most energy efficient in the market.

Nonetheless, it is still important to review the different models and how efficient they are in reducing energy bills.

How to select the right size

Most people get confused when it comes to the selection of the right aircon size. Others will opt for those that are large thinking that the cooling effect will be better. The fact remains that oversized units are less effective and a waste of energy. An oversized unit is likely to cool the room quickly, but leave some humidity behind. The end result is a room that is clammy and damp.
Size is not a huge determinant factor when you want to select your air conditioner. All that matters is getting a good unit that will be able to give the right cooling capacity in line with the size of the room. In essence, if you opt for a unit that is too small, it may not be able to offer the right cooling with efficiency. On the other hand, an air conditioner that is too big will also not be good for a room that is small. It will only cycle on and off and this will translate to energy loss and misuse of power. Moreover, using a bigger aircon in a smaller room will also affect the ability of the unit to dehumify the room effectively.

Aircon Size

As you strive to choose the right British thermal unit (BTU) for your room, it is good to consider other determinate factors such as the height of the ceiling and the type of climate. Apart from the room insulation type, it is equally important to consider the location and how much the room is exposed to the sun. This is the only way you will get the ideal energy efficient cooling system that will make your home as comfortable as you wish.

BTU rating number is very important because it will help you to know how quick or effective an aircon stem can be able to cool a room. These rating numbers usually range from 5,000 BTUs up to 20,000. As you proceed to select the right air conditioner for your house or commercial building, simple calculations must be done. For starters, the size of the area where the unit is going to be installed is very important. You can obtain the square footage of the room by multiplying the length and the width. After this, it will be easy to get the right BTUs that you require using a BTU calculator. Other factors that will also come in include nearness to the sun and the total number of people that are likely to be occupying the room. For instance, if the room is in a sunny location, the BTUs are supposed to be increased by 10%. The opposite should be done if the room is located in a shady place.

If the room is occupied by more than two people on a regular basis, 600 extra BTUs are supposed to be added for each additional person. Also, the situation should be the same if the aircon system is going to be placed in the kitchen. In this case, the capacity should be increased to 4,000 BTUs. The exact place where you are going to install the unit is equally of great significance. For instance, if you are going to install it at the corner of the room, it is advisable to look for a unit size that will be able to distribute the air in the right direction.


Average cost

Most of the air conditioners in the market have different prices and size is one of the factors that determine the price. In addition, most of them also have a few drawbacks that you ought to consider before you purchase. Ductless mini-split aircon systems may have several benefits that include reduced energy consumption and durability. Their small size also provides flexibility for zoning in room heating and cooling. However, these systems have some concerning aspect the main being a high initial cost of purchase and installation. A typical ductless aircon costs around $500 - $2,000 per ton of cooling capacity. This is estimated to be 30% more expensive than the conventional central systems.

Besides you need the extra expense of not including the duct. If you do not get professional installation, the handles can be wrongly spaced and result in increased energy consumption since the ductless systems are very delicate. The wall units are also expensive to install when compared to the windows of central systems. Moreover, the indoor look includes additional collectors and lacks a built-in appearance seen in many central systems. All these factors should be considered bearing in mind the size of the air conditioner.


Most of the leading aircon brands are very reputable in the HVAC market and are known to be the most energy efficient systems. They have the highest energy rating and also last for long before any breakdowns. Use and maintenance are equally quite effortless. Nonetheless, all these benefits come at an expense of a costlier price. Above all, the size of the system you select you always be in line with your needs. If you choose the ultimate quality, you must be prepared to spend more money and use professional installation services. It is advisable to use credible licensed professionals and businesses if you want to receive all the benefits mentioned above. This will ensure you get genuine quality from the manufacturers.
Testimonial Start
We did a quick comparison and decided to install our Mitsubishi Heavy Industries aircon. I am very impressed with their workmanship. They have very good after service as well. Professional and highly recommended.
Mr Alfred Tan (MCST)
Testimonial End

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