If it is 99 degrees outside and u have your ac in the house set on 74 degrees, what temp can u expec

Profile picture for JoyceBerndt Evancho
It is 99 degs. outside and I have the ac in house set on 74 degs.,  and it's still 79 degs. inside...is that normal?
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July 20 2011 - Alsip
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Answers (6)

Profile picture for SoCal_Engr
"Don't forget an Energy Efficient Mortgage can improve all of the needed repairs for you."

Based on information on this site, you are talking about an "Energy Improvement Mortgage" vice an "Energy Efficient Mortgage". Also, based on this information, there are specific criteria that have to be met to qualify for any of these loan products.

I have a real issue with "professionals" who only throw out teasers, and don't make any effort to provide any links to information that can be used for self-education on the product/program. It makes you look like a huckster, throwing out a teaser and hoping someone bites.
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July 31 2011
Profile picture for COREXRE
The minimum temperature that an a/c can hold or maintain is based on many factors.  How well is the house insulated, how many windows and roof domes or sky lights are in place, ... and which direction do they face ..... (i.e. - south facing vs. north facing).  Does the home have any early or late day shade?  Where does the interior temperature start in the morning (deg F wise)?  Do you have frequent cloud cover in the hot months or just blazing sun throughout the day?  How old is the a/c unit?  Has it been re-charged with cooling fluid in recent years?  Is the ducting insulated?  The list can go on-n-on.  What you can do and I recommend is to bring in 3 or 4 local HVAC companies and have them review and evaluate your system and make recommendations as to 'what' you might be able to do to improve the efficency and drop the interior temperature as the day warms up.  Ask questions ..... and make a decision as to what to do based on comparable input from the experts!!

Best success .................
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July 31 2011
Profile picture for Randal1961
Don't forget an Energy Efficient Mortgage can improve all of the needed
repairs for you.
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July 26 2011
Profile picture for HomePro Remodeling
Hi Joyce,

  What you are describing is common but not "normal".  It sounds like your air conditioning system is either undersized or in need of maintenance.  I am assuming that the unit is running non-stop to provide you with the 79 degree temperature which means that it is running at full capacity and is not sufficient for the job.

Air conditioning systems need to be designed to fit the space which they are conditioning.  HVAC contractors will perform a heat loss/gain analysis to determine what the requirements will be given the size of the space, the insulation, the average high/low temperature for your area, etc..


I hope this helps,
Ethan 
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July 22 2011
Profile picture for Michael Helton
Yeah, probably an insulation issue.  If there are many sun-facing windows, close/cover them to reduce the heating effect.  Also consider opening all the doors/windows in the morning to fill the house with cooler night air.  An attic fac is also a fairly cheap way to cool the house (it kicks the hottest sir out of the attic).

However,you should expect the temp inside that you put on the thermostat.
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July 21 2011
Profile picture for Georgia Loans
Does the inside temp start off at 74 in the morning, then climb to 79 in the late afternoon? If the air coming out of the vent is cold, then it is probably due to the home being older with little insulation/single pane windows/no roof vent, etc.
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July 21 2011
 

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