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Leaving our house - leave on AC or not?
Old 07-21-2019, 04:46 AM
  #1

We are heading to SC and wonít be home to NJ until December.

Some friends are advising us to leave the AC on (high, like 90 degrees.) And one of them would switch the system to heat (low, like 50 degrees) when things get cooler, maybe the end of September.

Would it harm our house to just leave the heat on low and not set the AC at all? We lived for many years thought heat waves without AC when growing up. Thatís what we are thinking of doing.

What are your thoughts? TIA!


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Old 07-21-2019, 04:59 AM
  #2

Are you talking about leaving it constantly on or setting your timer to turn it on at some point daily for a certain period of time? I'd set it at like 72/73 to go on a couple of times a day.
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Old 07-21-2019, 05:03 AM
  #3

I think your trip will be at a time where your home in NJ won't experience any extreme cold or heat, so you won't have to worry about pipes, etc in cold weather. I would leave the heat on 50. I don't think turning off the AC would hurt, might be a bit stuffy/stale smelling when you return, though.
The most important thing is to enjoy your time in SC!
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Old 07-21-2019, 05:07 AM
  #4

I would not leave it off. You want to clear the humidity in the house and keep air circulating to protect against mold developing. I would set it at 78-80 degrees.
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Old 07-21-2019, 05:09 AM
  #5

I would turn off the A/C. Like you said, we lived for years without it! I would set the heat to 50 so you are set for colder temps.

Enjoy!


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Old 07-21-2019, 05:33 AM
  #6

I agree with Zipline. Although you lived for years w/o AC, you were most likely maintaining the most comfortable temperature you could by opening/ closing windows/doors during certain parts of the day, running a fan, etc. That air circulation is important in high humidity areas. By setting your AC to kick on periodically, you can keep the humidity and mold potential at bay.
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Old 07-21-2019, 05:42 AM
  #7

Itís adding an expense, but itís a one time expense, and in my experience has been worth it. Go out and get a WiFi thermostat. You can then manage your A/C through your phone. Itíll allow you to keep it on to make sure that it stays in good working order, but not spend a fortune in electric.
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Old 07-21-2019, 06:09 AM
  #8

This is what I would do...invest in a thermostat that you can control by your phone. Best thing we ever did!!!!

If not, I would leave AC on at 90 and then when it's cool enough to switch to heat I would have someone come in and do that.

Leaving your home that long without any temp control could lead to mold issues. I would also leave a ceiling fan or two on, if you have them, to help circulate the air.
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Old 07-21-2019, 06:16 AM
  #9

I also would try to get the wifi thermostat. You can monitor it that way and can turn it on for short periods of time to clear the humidity. It was so nice on my vacation to be able to turn the air on hours before I got home so it wasn't so hot.

If not, I'd probably see if someone could come in the house, as pp suggested. You would probably be okay leaving the air on high (I'd maybe do closer to low 80s), and then come November, having someone switch it so the heat is on low.
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Old 07-21-2019, 07:08 AM
  #10

I would have the AC come on.

We built a pole barn shed, and finished the inside. It was my quilting studio. I decided that it didn't need air conditioning. I'd open the windows and doors for a breeze when I was down there. The second year we went through a hot, humid spell. I went down to quilt after about 5 days away, and discovered mold EVERYWHERE. The quilting table had mold all over the particle board back. There was fabric covered in mold. The quilt I had on my frame had mold all over it, and ruined the center section.

I now keep a dehumidifier in the shed in the summer.

I wouldn't leave my house without air on and shut up without a breeze to cool it off. I can't imagine the disaster that I might face in my house if I didn't.


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Definitely
Old 07-21-2019, 07:11 AM
  #11

have someone come in periodically and check the house. Also be sure to turn off the hoses for the washer. I have friends who had their washer hoses break and flood the whole house. Not a pretty sight to come home to. Other things can happen too. I would rather be safe than sorry.
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Hmmmm
Old 07-21-2019, 07:33 AM
  #12

I would leave everything off.

I would also raise the setting in my fridge and turn off pilot light for the gas.

In upstairs windows I would crack open slightly maybe

I would put my houseplants in the tub watering from below
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Old 07-21-2019, 07:54 AM
  #13

Wow, happygal, my dead grandmother heard you.
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Old 07-21-2019, 10:09 AM
  #14

Right?! Oh Happygal :P
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Leave it on
Old 07-21-2019, 11:53 AM
  #15

My BIL passed away in Feb. Lived in Minnesota. My other BIL was there yesterday and said the house was very musty. No heat or AC was left on. Will begin to leave it on in the future to try to keep the humidity out.
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Old 07-21-2019, 03:34 PM
  #16

My parent's home is empty for long periods. We leave the ac at 80 in the summer and the heat at 58 in the winter. Not only does it keep it temperate, but air circulates on occasion. That helps with moisture etc. I think having someone's eyeballs on the house a few times during your trip would be good.
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Thanks, everyone!
Old 07-21-2019, 03:53 PM
  #17

We are going to keep the AC on and have our neighbor switch the setting to heat in the fall. Better safe than sorry!

We will have friends check on the house for us periodically. We were also told to winterize the drains. Water will be shut off. Lawn service has been hired.

Thanks for all your advice!

@Zia-
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Old 07-21-2019, 05:23 PM
  #18

If your humidity levels are anything like ours on the NE coast of FL, I would keep it lower than 90 of humidity is going to build up in the house. I think I would keep it for about 78 and wait till probably October before setting on heat. At that point I think I would keep at about 62-63 so it will run at least a little bit.

Nancy
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Old 07-22-2019, 01:27 PM
  #19

Thanks! I like your suggestions.
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