Serving Broward, Palm Beach, Martin & Southern St. Lucie Counties
We Are Here To keep you Cool

What Size AC Do You Need?

Calculating the Right Air Conditioner for Your Home

At Cousin's Air, Inc., we use what is known as Manual J HVAC load calculation to determine the AC unit your home needs to stay comfortably cool. The information we ender into the formula includes:

  • Types of surfaces (doors, ceilings, floors, etc.) in your home
  • Number of windows
  • The types of windows
  • Insulation levels
  • The cardinal direction your home faces
  • Roof overhang
  • Square footage of your home

Here in South Florida, air conditioning is a necessity and something that we use all year long. There are only a few days each year that we do not need air-conditioned cooling to keep us comfortable while inside. When we talk about the size of air conditioners, it is an important factor when buying either a central air conditioner unit or an ac unit that fits in the window. Sizing for air conditioners is measured in BTUs and tonnage. Cousin's Air, Inc. technicians are happy to help advise you on the best sized air conditioner for your home cooling needs.

Window Unit Air Conditioner Sizing

If you are purchasing a window unit air conditioner, then we are talking about the size of the unit in relation to the size of the window. Most window size air conditioners fit into standard size windows. If your window is not a standard size, our technicians can modify and insulate the unit to make sure it fits properly.

Central Air Conditioner Sizing

For central air conditioning units, the sizing of the ac depends mostly on the size of the room and home that you have. There are a few other factors that can be considered such as the amount of shade, the amount of sunlight that shines in your home, and whether or not you have insulation or window tinting. Do not fall for the misconception that a bigger size central air conditioner unit is always better. In fact, an air conditioner that is too large may not efficiently cool or remove enough humidity from your home. An over-sized unit will cost more money that an air conditioner that is properly sized for your home as they will cycle on and off more often. An air conditioner that is undersized for your home will not cool it off completely and will always be working overtime.

Manual-J Heating and Cooling Load Calculations

Manual J is the name for a way that we calculate how much cooling or heating a home needs to stay cool and dry in the summer and warm in the winter. Manual J calculations are often called “Heat Load Calculation” or “Cooling Load Calculation”. Of course, here in South Florida, we don’t have to deal much with the heating portion of this calculation and measurement. This load calculation has been used for decades to determine the size air conditioner that is needed for your home. The result will be the perfect size air conditioner that will efficiently cool your home off.

What Our Customers Are Saying

Past Customers Are Our Best Advertisements
  • “Excellent experience!”

    Virginia Sylvester

  • “CHRIS, the fine tech who has maintained my system and provided quarterly check-ups and maintenance services, Alex and David who did a fabulous job, cleaned up and educated me on everything.”

    Dr. Allen W.

  • “Thank you for such a quick response and an experienced tech to handle the problem.”

    Gene N.

  • “the service man was knowledgeable polite and efficient”

    Steve

  • “I wanted you to know that John was so personable, kind and professional.”

    Kathy M.

  • “They should be commended!”

    Alison

  • “Hard to believe there is an air conditioner company like this out there.”

    Tony C.

  • “He took time to explain everything that he was doing and educated me on what I can do to keep my unit performing at its best.”

    Blake

  • “Prompt, courteous, competent service. Highly recommended.”

    Mark G.

  • “The “boys” did a great job of making a difficult time bearable.”

    Steve G.

  • “Choose Cousins Everytime!”

    Jada

  • “awesome service”

    Pail M.

  • “Andrew spent quite a bit of time getting things right. It was a hot day and he needed to be in the attic space a long time, but was still cheerful and infomative despite being uncomfortable.”

    Daniel P.

  • “they were efficient, personable (another feat for contractors) and completed the job on time (need I say more).”

    Len S.

  • “Excellent work to ensure the installation was done properly and on schedule”

    Bill L.

Why Cousin's Air, Inc.?

  1. Family Owned & Operated Since 1995
  2. 24/7 Emergency Service Available
    *For Maintenance Agreement Customers!
  3. Superior Workmanship
  4. Drug-Free Workplace
  5. Carrier President's Award Recipient
  6. Professional, Reliable & Responsive
  7. NATE Certified Technicians
  8. Flat Rate Pricing
Get 10% Off When you book Online for service calls only
  • Please enter your name.
  • This isn't a valid email address.
    Please enter your email address.
  • This isn't a valid phone number.
    Please enter your phone number.
    You entered an invalid number.
  • Please select an option.
  • Please enter a message.