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Question DetailsAsked on 9/10/2015

How is central airconditioning sized for my home?

We have an existing central heating system, installed in 2000 with ducts going throughout the house. House is one level, approximately 2100 square feet in size.

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The answer to that question depends on the climate area in which your home is located, the amount of insulation you have in ceiling and walls, typer of construction, and the cubic footage of your home. In my area the temperature increases to 100 degrees in the summer and dip to 25 degrees at night in the winter in California.

I have a 36,000 BTUH air conditioning with an 80,000 Btu gas furnace in an 1800 sq. ft. home. There are vaulted ceilings in half of the house. My sizing was accomplished by the contractor through a company that he hired to size the HVAC for all the like homes in my housing tract. This is a state requirement in new homes in California to eliminate oversizing so the home is more energy efficient.

If you live in a cold climate your furnace system will require a higher level of heat in BTU's per hour and maybe a smaller air conditioning unit. I would consult a professional heating and air conditioning contractor to be sure it is sized right. The contractor will inform you in hopes to get the installation contract; but get three bids and research each contractor for reviews in places like Angie's List. Contact the license board in your state to be sure they are licensed and find out if there have been formal complaints against them.


Source: Poppy Ross

Answered 5 years ago by PoppyRoss

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To learn more about the right and only way to select the correct size , visit here;


www.acca.org Select Looking for a contractor, then consumer information, then scroll down to Manual J


They wrote Manuals, J,S and< D to size and select the equipment, plus D to correctly size the duct system. All thre are a must for home comfort and efficient operation.




Source: www.bayareacool.com

Answered 5 years ago by BayAreaAC




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