When looking to buy a new AC unit system, one of the first questions you’ll ask an HVAC company near me is, “What Size Air Conditioner Do I Need For 1500 Square Feet?” Most homeowners in Chicago and Northwest Indiana have windows around the 1500 SQFT and are more concerned with the cost of purchasing the AC unit and installing it. They base their purchase on pricing, therefore they opt for a smaller AC unit for their home in the hopes of saving money.


What Size Air Conditioner Do I Need For 1500 Square Feet?

Some folks, on the other hand, prefer a larger unit. Hot summers cause some to buy a larger air conditioner than their home needs, but both are wrong. You want the right size so you can save money and feel more at home.


Some homeowners purchase an air conditioner that is too large for their home. They hope it will aid in keeping them cool during the summer months in Chicago’s dry heat. A large A/C, on the other hand, is inefficient and wastes energy.


When a unit is too large for a space, the temperature drops dramatically. At the same time, the A/C will only remove a little amount of the humidity in the air. As a result, the room has a damp and clammy feel about it. Furthermore, the cost of the unit, installation, and utility costs are significantly greater. The unit should be of sufficient size to remove humidity while cooling the room. You will also have to worry about maintenance costs because the A/C would have to keep cooling in a greater area, putting unnecessary strain on the unit.


The first thing to realize is that a “ton” does not refer to weight, but rather to the system’s ability to cool a space. A ton of water can chill 12,000 British Thermal Units (BTUs) in one hour. As a result, a two-ton air conditioner can chill 24,000 BTUs each hour. A BTU is defined as the amount of energy required to heat and cool one pound of water at one degree Fahrenheit.


A ton of air conditioner, in this context, indicates that it can cool 12,000 pounds of water and raise its temperature by one degree in one hour.


Chicago has moderate winters and dry summers, and many homes lack basements. When your home is between 600 and 900 square feet, a 1.5-ton A/C unit is advised to provide the necessary cooling. Meanwhile, if your home is more than 900 square feet and up to 1,200 square feet, you’ll require two tons.


  • Homes of 1,201 to 1,500 square feet should use 2.5 tons.
  • If your home is larger than the number above but less than 1,800 square feet, you can choose a three-ton A/C.
  • If your home is larger than 1,800 square feet but not larger than 2,100 square feet, go with a 3.5-ton unit.
  • A four-ton unit is appropriate for homes larger than 2,100 square feet and up to 2,400 square feet.


When you buy and install a unit, you can get a general estimate of its size by using the measurements above. Furthermore, there are three methods for determining the size of your AC for your space.


The first method requires the use of an equation. Here’s what you’ll need to get the required tonnage for your Chicago home:

  1. Typically, you would need to deduct one after finding the solution to the equation above. However, because the weather in Chicago and NWI is What Size Air Conditioner Do I Need For 1500 Square Feet?hot, you do not need to deduct another point. As a result, if your home is 1,500 square feet, your air conditioning unit should weigh between 3.5 and four tons.


2. The second option is to speak with an A/C specialist at Quality Services Inc. to determine the right size. To get results, enter your location, summer and winter temperatures, and property shadow.


3. Finally, you may utilize an accurate AC sizing graph that depicts the entire map of the United States. Before purchase, locate Chicago and your square footage, and determine the appropriate size air conditioning system for your location.

Looking for an ac unit but don’t know how to find out the size you need? Contact Mr. Quality AC repair experts at (708)748-1946 now! And visit our website to get estimates and ask one of our experts How Does Portable Air Conditioners Work.

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