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Old 02-18-2022, 10:21 PM
 
Location: Florida
2,026 posts, read 2,778,556 times
Reputation: 1382

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What temperature can you cool a house down to?
In hot weather, especially warmer states like Florida, Texas, Arizona...
Let's say an older (1960's - 1970's) cheaper working class house?

I bought an investment property, in a cheaper neighborhood, built in 1979. Replaced the AC system 2 months ago, inside and outside units, all pipes. Also got additional 10" blow in insulation in the attic. The tenant is trying to get it down to 72F, but its only getting down to 78F, now in February although it was a little warm around 82F outside and sunny.
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Old 02-19-2022, 03:40 AM
 
Location: The Triad
34,092 posts, read 83,000,140 times
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Quote:
Originally Posted by buenos View Post
...82F outside and sunny trying to get it down to 72F, but its only getting down to 78F
Replaced the AC system... got additional 10" blow in insulation in the attic...
How did you choose your contractor?
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Old 02-19-2022, 05:46 AM
 
Location: Florida
7,246 posts, read 7,081,130 times
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You need an audit of the house. It's losing air somewhere. Windows, doors, flue, bath vents. Somewhere needs caulking, replacing or adjusting.

I live in central Fl. Cool house at this time of year is easy.
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Old 02-19-2022, 05:55 AM
 
3,933 posts, read 2,196,520 times
Reputation: 9996
Quote:
Originally Posted by buenos View Post
What temperature can you cool a house down to?
In hot weather, especially warmer states like Florida, Texas, Arizona...
Let's say an older (1960's - 1970's) cheaper working class house?

I bought an investment property, in a cheaper neighborhood, built in 1979. Replaced the AC system 2 months ago, inside and outside units, all pipes. Also got additional 10" blow in insulation in the attic. The tenant is trying to get it down to 72F, but its only getting down to 78F, now in February although it was a little warm around 82F outside and sunny.
One always suppose to air seal all joints and penetrations before adding insulation .

That could be the problems: read on about air sealing the house, where and why it is important.
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Old 02-19-2022, 06:47 AM
 
Location: Florida
2,026 posts, read 2,778,556 times
Reputation: 1382
How many degrees of inside temperature does air sealing of attic gaps improve?
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Old 02-19-2022, 08:52 AM
 
17,624 posts, read 17,690,196 times
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I’m in south Louisiana. In the summer we have our AC at 73. Our home was built in 73. We were able to do this after replacing attic insulation. Have increased efficiency by adding Storm windows over existing aluminum frame single pane windows. You may have a serious issue with your home.
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Old 02-19-2022, 10:36 AM
 
Location: Florida
2,026 posts, read 2,778,556 times
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Quote:
Originally Posted by victimofGM View Post
You may have a serious issue with your home.
What exactly is it?
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Old 02-19-2022, 11:20 AM
 
Location: Florida
2,026 posts, read 2,778,556 times
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Quote:
Originally Posted by Ments668 View Post
It all depends on what AC unit you have and other issues. You could turn it into an igloo if you wanted. Could be old AC, bad insulation, old windows, ect,..
See first post... new AC, new attic blow in insulation.
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Old 02-19-2022, 12:45 PM
 
5,455 posts, read 3,390,454 times
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The a/c is not working properly. My guess is there is not enough refrigerant in the unit. It must have been slowly leaking out. You have to get the unit tested and possibly have more of the substance pumped in.
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Old 02-19-2022, 12:48 PM
 
984 posts, read 442,799 times
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I'm in Florida. This time of year, the house stays at 72-74 easily. (We normally keep it a little higher during the day, but sometimes I will turn it down if I'm going to cook a roast or something in the oven or if we will have several people over.) During the summer, some days it struggles to keep it below 77 or so in the afternoon. Our house is a 2002 and the ac unit is only a couple years old, we had it replaced.

If your tenants can't keep the house at 72 this time of year, they're going to be extremely uncomfortable in the summer.
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