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  Topic Review (Newest First)
2018-07-12 02:58 PM
pinto +1 on the humidity, my kids complain because the Nest is set to be warmer in the summer/cooler in the winter during the day and I work at home. I would never try and heat my house with all the windows open
2018-07-12 01:14 PM
ExDilbert Temperature is only part of the issue. Humidity can be more important than temperature, even when it is cool outside. It takes far more energy to condense water, something an A/C unit also does, than it does to cool air or even cool water. Keeping the windows closed keeps the humidity level at a point where the A/C is working continually to remove humidity (AKA water vapour) from the air.

The other thing that gets to me is people who use the oven in very hot weather. It's too hot to go out so they stay inside and bake. What's wrong with this picture?!
2018-07-12 12:18 PM
Inglewood My neighbor leaves his back door open all summer to let his dogs run free, with the Central AC running right beside it 24/7.

Always wonder how much extra he pays each summer. Does the same thing in the winter as well when I assume his furnace is running.
2018-07-12 11:29 AM
17671 Cool good to know, I have been teaching my wife the importance of setting the thermostat before you leave the house for long periods of time so you do not want to have the air conditioner running non stop on an empty house, and also teaching her that when you open the windows, you need to turn off the system via the thermostat so its not working extra hard unnecessary. Glad to know I am doing the right thing and my neighbor is an idiot, I already knew he was not so bright
2018-07-12 11:18 AM
ExRobotGuy Knowing only what the writer has said, these people are idiots. They are wasting money and it's also bad for the environment!
2018-07-12 10:58 AM
NovaMan We have had a heat pump for about 18 years and always turn off the system when the windows are open. But, some people just set their thermostats at a certain temperature year round and never touch it, even when the windows may be open to let in some fresh air. Like Phils said, it will cost you more.
2018-07-12 10:49 AM
Phils It's a good idea to close the windows if you'd rather not pay for cooling the great outdoors.
2018-07-12 10:15 AM
17671
Running A/C With all the windows open

So I got my new Central A/C a year ago, one thing I was told when I had it installed is to make sure all the windows and doors are closed when its running, because the house air is a closed system compared to the air outside the house. I have been following this law religiously, but I have noticed, my next door neighbor also has a fairly new Central Air Conditioner, but his is constantly running 24/7 all the time. He runs his even with all the windows in his house wide open. Umm I was taught this was bad, but why do some people do it? is it really necessary to close all windows when running the A/C? If so maybe my neighbor did not get the same info I got?

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