Guide to Choosing the Right Size Air Conditioner

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Luke Martin
Luke Martinhttps://myfancyhouse.com/
I am Luke Martin, a writer who loves homes. My words are about creating comfy and nice living spaces. Let's explore ideas for decorating and making homes cozy together. Join me on this journey to make your house a special place to be.

The primary goal of installing an air conditioner in your home is to keep your interior spaces at a comfortable temperature. Among the most important factors to consider when choosing an air conditioner is size. An improperly sized air conditioner can negatively impact the comfort levels, the unit’s performance, and your energy bills. Choosing one that’s too small for your home means it will struggle to cool your home, making it wear out faster and hiking your energy costs. On the other hand, choosing an oversized AC unit can lead to short cycling on and off many times during the day, increasing your energy bills.

Getting a properly sized air conditioner for your home is crucial to ensure you get the best in comfort, performance, and energy efficiency. If you’re unsure what AC size you need, a professional AC installer can help you determine the proper size for maximum efficiency. However, it’s also important to understand the various factors that could impact the size of AC you need for your home. Here are some factors you need to consider when buying a new air conditioner to ensure you choose the perfect size for your home:

1.  Climate and Sun Exposure

One of the main things that influence the size of the air conditioner you need is the location of your home and the climate. If you live in hot areas, you’ll need an AC that’s big enough to keep your home cool and comfortable. The humidity levels inside and outside your home can also impact the size and type of AC you should use.

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Homes that face west or east tend to be hotter in summer due to heat from the sun exposure, and they usually take longer to cool, meaning you’ll need a higher capacity AC to maintain ideal room temperatures. If your home faces primarily north or east, it will be less exposed to the sun, making it cooler even in summer, so installing a small AC can serve your home’s cooling needs.

2.  The Number of Occupants

Another factor to consider when choosing the right size AC is the number of people in your home. Generally, homes with more occupants will need a bigger AC than those with fewer family members. That’s because the human body generates up to 100 W of heat at rest. If your home has more occupants, internal temperatures tend to be heightened, requiring an AC with a higher wattage.

The amount of heat your body releases tends to increase depending on the activity level. You might need a larger air conditioning unit in the gym than one for your bedroom, as activity levels are usually higher during exercise than when you’re asleep in your bedroom. 

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3.  Insulation

Your home’s insulation also plays a vital part in determining the size of the air conditioner you should install. That’s because insulation helps keep heat out during the hot summer months, reducing your cooling needs. If your home is well-insulated, you’ll only need an AC with the minimum recommended cooling capacity to maintain comfortable temperature levels.

However, this can vary greatly depending on different factors, such as the type of insulation used, how the insulation material is installed, the choice of flooring, the gap between the door and floor, your home’s location, and many others. Generally, a well-insulated room will be easier to cool with a smaller air conditioner than one without any insulation.

4.  Windows

While windows make your interior spaces appear spacious and open, they can also contribute to energy loss in your home. They allow cold and heat from outside to get inside your house, making your home warmer during summer and colder in the winter. The size and number of windows in your home can significantly affect the size of the air conditioner you should use and how efficiently it performs.

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If you have many large windows in your room, the interior temperatures will be higher in summer, making your air conditioning unit work harder to cool. If your windows are positioned such that they face sunlight, you’ll also need a higher capacity AC to keep your room cool.

5.  Ceiling Height

Besides your home’s square footage, the height of your ceilings can impact your room’s volume, influencing the right size of AC to use. If your home has high ceilings, it will have more volume than when it has a standard ceiling height. This way, you’ll need high-capacity AC to cool the entire home to sufficiently cool the air inside.

Installing a smaller-capacity air conditioner in a room with a high ceiling may not have enough cooling power to cool the larger air volume. This will make it work harder to keep the room cool, increasing your home’s cooling costs.

6.  Heat Generating Appliances

Apart from the heat produced by your home’s occupants, the additional heat generated by your appliances can greatly impact your AC size requirements. Rooms with heat-generating appliances need an AC that’s big enough to keep them cool. However, installing a smaller air conditioner in a room with heat-generating appliances, the harder it will need to work to keep the room cool.

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Another factor that can impact the size of the air conditioning unit to install in a room with heat-generating appliances is the direction the room’s windows are facing. If the windows are facing east or west, they get direct sunlight, making the room extremely hot during summers. It’s crucial to take these factors into consideration when deciding the amount of cooling you’ll need for rooms with heat-generating appliances.

Endnote

From the location to the number of occupants and the number of windows in your house, there are many factors that you need to consider when deciding the right size of air conditioner you need. Installing the wrong size AC may affect how efficiently it cools your home and can increase your energy costs. An AC installer can provide expert guidance on the ideal size air conditioner to use based on your home’s unique characteristics and other variables to ensure maximum efficiency.

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