Posted on: March 29, 2021

What Goes Into the Calculation About Air Conditioner Size?

There are all sorts of air conditioning size calculators out there. The better ones, like the one on the Hello Breeze home page, asks you for several pieces of information.

These little apps are built to take a bunch of things into account, like room size, which way the front of your home faces, where most of the windows are, how much and what kind of insulation you have, what geographic part of the country you're located in, how old your home is, what the main construction materials are (steel, wood, stone, etc.), and more.

How Does an Aircon Calculator Work?

The way the calculators work is simple as can be. Like our version, they're set up to run you through a series of simple questions about room size, location, insulation, and more. Once you fill in all the blanks, the calculator spits out a kW size for a unit that is best suited to your particular home.


What are the Limitations of Calculators?

Nothing's perfect in this world, and calculators are no exception. In fact, an air conditioner size calculator is only meant to give you an idea of what size unit is best for your house. It's sort of like those online apps where you can plug in your height, body type, age, and gender to find out how much you are "supposed" to weigh.

It's hit-and-miss with math equations like that. The best way to get the real story about the perfect AC unit size for your living space is to speak with a professional contractor, who can look at your home, check out dozens of other factors besides those few that go into the online calculator, and then give you an exact answer.


Insulation and Location

Forget about room size for a minute and focus on insulation and location. Actually, those two factors can be much more relevant than room size when you shop for an air conditioner. If your ceiling and walls have little insulation, or none at all, it will take a much stronger air conditioner to cool the place down and keep it nice and comfortable. 

In fact, it's usually to your advantage to put in extra insulation before buying an air conditioner. The cost of doing so is small compared to how much you could save by buying a smaller unit and having to run it less often.

Location is another factor that people often ignore. The seasonal climate where you live plays a major role in how large your air conditioner needs to be. Cooler places, of course, don't need the largest, strongest units. Warm, balmy locales will need those bigger units to keep a house comfortable.


How To Do It Right

There's no sense in sitting around in a hot room wondering, "What size air conditioner do I need?", or "How do I calculate what size air conditioner I need?" Give Hello Breeze a call and one of our technicians can walk you through the process of discovering whether you need a small, medium, or large air conditioner. They'll be able to tell you right down to the kilowatt what will work best for you.

The main thing you want to avoid is a mismatch. That's air conditioning jargon for a home that has a unit that's either too big or too small. Mismatches can lead to all sorts of expensive problems and usually cause the homeowner to buy a replacement unit, have the old, wrong-sized one removed, and install the correct version.

You can probably guess that a mismatch can be a very costly affair and can turn what should be a great adventure (getting a new air conditioner) into a nightmare. Don't lose sleep by getting a unit that's too big or too small. Call Hello Breeze and our experts will do all the math, inspecting, and calculating for you.

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