How to Choose The Right Size Air Conditioner For Your Home
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How to Choose The Right Size Air Conditioner For Your Home

Are you looking for a new air conditioning system for your home? Choosing the right size is key to getting the most out of your unit and ensuring comfort in every corner of your house. In this guide, we’ll cover everything you need to know about selecting the perfect size of air conditioner for your home.

How To Choose The Right Size Air Conditioner For Your Home

At Robert B. Payne, we understand that finding the right air conditioner size for your home can be a daunting task. That’s why we offer our expertise in helping you decide which system is the best fit for your space, lifestyle, and budget. With over 90 years of experience, we guarantee professional AC services backed by top-notch customer service so you can rest assured knowing that your family is safe and comfortable.

We’ll start off by telling you why size is important. We’ll then go over the various factors to consider when choosing an AC system for your home, including cooling capacity, SEER rating, energy efficiency, and other features. After picking out a unit that suits your needs and budget best, it is important to have an HVAC professional install and maintain it so that your AC continues to run efficiently for years to come.

So, let’s get started on this journey of selecting the right size air conditioner for your home. We know you’ll be happy with the result. 

There are several reasons why selecting the right size air conditioner for your home is essential. A unit that is too small won’t provide adequate cooling and will be constantly running, leading to higher energy bills. On the other hand, an AC system that is too large will cool the space quickly but shut off before it completes a full cycle, resulting in inefficient operation and decreased air quality.

When selecting the size of your air conditioner, there are several factors to consider: cooling capacity, SEER rating, energy efficiency, and other features. Let’s break down each of these components in further detail so you can make an informed decision when it comes to choosing the right AC system for your home. 

BTU, or British Thermal Units, is the measure of cooling capacity for air conditioners. The BTU rating directly relates to how much heat an AC unit can remove from a room. The higher the BTU rating, the larger space it will be able to cool. It’s important to ensure that you select an air conditioner with a high enough BTU rating to effectively cool the entire space. You’ll require about 20 BTU of cooling for every square foot of space. For instance, a 2,000-square-foot house will require about 40,000 BTU.

The SEER rating of a particular air conditioner measures how efficient it is in converting electricity into cooling power. Higher SEER ratings indicate that an AC unit is more energy-efficient and can help you save money on your utility bills. Look for an AC system with a high SEER rating to ensure that you are getting the most out of your purchase.

When selecting an air conditioner for your space, there are several other features to consider such as climate, number and placement of windows, insulation, shade, and the size of your home. Pay close attention to these details so you can make sure that you are choosing an AC system that can effectively cool your home.


The climate of the area where your home is located is an important factor to consider when selecting an air conditioner. If you live in a warmer climate, then you may require an AC system with more BTUs and SEER ratings than if you were living in a colder region.

Number And Placement of Windows

The number of windows and their placement can have a major impact on the efficiency of your AC unit. If you have a lot of windows in the space, then you may require an air conditioner with a higher BTU rating to cool the room effectively. Also, if you have windows that face south, they will receive more direct sunlight which can add heat to the room and make it difficult for your AC system to maintain comfortable temperatures.


Having adequate insulation in your home will help to keep the temperature consistent by trapping cool air inside and preventing hot air from entering from the outside. Proper insulation can have a significant effect on energy efficiency, so make sure that your home is properly insulated before selecting an AC system.


If your house is located in an area that receives a lot of direct sunlight, then it may be necessary to install shades or screens on your windows to reduce the amount of heat entering the home. This will make it easier for your AC system to maintain cool temperatures and reduce energy consumption.

The Size Of Your Home

The size of your home should also be taken into consideration when selecting an air conditioner. If you have a bigger space, then you should choose an AC system with more BTUs and SEER rating than what would be suitable for a smaller home. It is best to consult an HVAC professional to determine the right size of AC unit for your needs.

Contact The Experts For Help

Finally, if you are still unsure about which air conditioning system to choose for your home, it is best to contact the experts at Robert B. Payne. Our experienced HVAC technicians can help you determine the right size AC unit and provide installation services as well. This will ensure that you have a system that is capable of cooling your home efficiently and reliably. Contact us today at 540-373-5876 to get started.

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