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Calculating The Correct Size Air Conditioner

An air conditioner unit on the side of a house.

When the weather heats up during the hot summer months, many of us rely on an air conditioner to stay cool. Whether you’re at home or at the office, air conditioning can help to ease the discomfort that heat can bring. You need to choose the right sized air conditioner for your home to reap all the benefits for you and your family.

Realize There Are Many Factors at Play

Getting a new air conditioner for your home or office isn’t as simple as picking a random one out. You need to pick a system that is the right size for your home for it to work. An air conditioner that is too small won’t cool your entire space. An air conditioner that is too big will always run and leave your air humid and uncomfortable. There are a plethora of factors that go into calculating the appropriate size for your new AC system. These include roof style, ceiling height, insulation type, and number of stories. It can be complex to determine the ideal size of AC system for your home. Any HVAC professional will be able to assist you in calculating the ideal size for your needs.

Understanding the BTU Formula

One of the simplest ways to determine what size system is best for your home is to use the BTU formula. This involves calculating how many BTUs your new air conditioner must have to cool the home. BTU stands for British Thermal Unit. It takes about 25 BTU to cool down each square foot of your home. To determine the ideal BTU rating of your new AC system,  determine the total square footage of your home. For example purposes, let’s say that your home is 1,000 square feet. You’ll take 1,000 and multiply it by 25 BTU to get a total of 25,000 BTU. Any air conditioning system should be around 25,000 BTU to ensure that it will cool your home or office space. When you start looking at air conditioners, you’ll notice that many of them have ratings based on tons. It’s helpful to note that when calculating necessary AC size, 1 ton is equal to around 12,000 BTUs. So, taking our earlier example of 25,000 BTUs, it becomes clear that you’ll need an HVAC system of over 2 tons. Calculating based on square footage can determine the best size HVAC unit to install.

Call Us Today

If you’re interested in investing in a new air conditioner for your home, then it’s time to give us a call. Let our HVAC professionals help you get the right size air conditioning system. We can find something to meet your needs and your budget.

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