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
  • “The customer service, scheduling, pricing, financing, and installation were all more than anyone could ask for.”

    Clyde 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.

  • “Choose Cousins Everytime!”

    Jada

  • “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.

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

    Kathy M.

  • “All went well with the installation.”

    Kelley D.

  • “Pleasantly Respectful and Professional”

    D. Reiss

  • “It was obvious that he looked for every opportunity to do his best for me as a new client. I would highly recommend him to anyone looking for excellent AC service and knowledge.”

    Barbara B.

  • “I thank you all for this level of help and that service continues to reinforce my opinion of why my company uses your firm. Thanks again.”

    MEYERS Properties, Russell M.

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

    Len S.

  • “Cousins really is the best! Thanks again!”

    Dustin

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

    Mark G.

  • “We are a Cousins fan forever!!”

    Ron L.

  • “Thank you Cousins Air, I would NEVER think of going to any other company to service and care for my home.”

    Allen

  • “FAST RESPONSE...He was friendly, effective and efficient”

    James B.

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
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