# ac settings **URL:** \ **Category:** Factual Questions\ **Created:** [July 11, 2007, 3:15am UTC](https://boards.straightdope.com/t/ac-settings/411319 "2007-07-11T03:15:19Z")\ **Posts on this page:** 5\ **Page:** 2
**Author:** ![raindog](https://avatars.discourse-cdn.com/v4/letter/r/2bfe46/32.png) [@raindog](https://boards.straightdope.com/u/raindog)\ **Post date:** [July 13, 2007, 10:01pm UTC](https://boards.straightdope.com/t/ac-settings/411319/21 "2007-07-13T22:01:26Z")
[QUOTE=Dag Otto] It sound to me like it is a 100% outside air application with no humidity control. [/QUOTE] Sure does. ---
**Author:** ![CookingWithGas](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cookingwithgas/32/485_2.png) [@CookingWithGas](https://boards.straightdope.com/u/CookingWithGas)\ **Post date:** [July 13, 2007, 11:19pm UTC](https://boards.straightdope.com/t/ac-settings/411319/22 "2007-07-13T23:19:14Z")
[QUOTE=the raindog] You may be thinking of a “whole house fan” instead of an attic fan. A whole house fan is located in the ceiling and draws air from outside and discharges it into the attic. It basicaly pulls air through the [open] windows [and blows it into the attic.] [/QUOTE] Indeed I am. If Hampshire was talking about the same thing you are then I am confused by the suggestion that keeping a window open at night would be an alternative. > [@Hampshire](#): > > The other problem you need to solve is pumping hot air out of the top of the house when it’s trapped there. Attic fans can do this but if you don’t have one you may need to open a window during the night. ---
**Author:** ![raindog](https://avatars.discourse-cdn.com/v4/letter/r/2bfe46/32.png) [@raindog](https://boards.straightdope.com/u/raindog)\ **Post date:** [July 13, 2007, 11:51pm UTC](https://boards.straightdope.com/t/ac-settings/411319/23 "2007-07-13T23:51:23Z")
[QUOTE=CookingWithGas] Indeed I am. If Hampshire was talking about the same thing you are then I am confused by the suggestion that keeping a window open at night would be an alternative. [/QUOTE] Me too. ---
**Author:** ![Napier](https://avatars.discourse-cdn.com/v4/letter/n/ce73a5/32.png) [@Napier](https://boards.straightdope.com/u/Napier)\ **Post date:** [July 14, 2007, 11:19am UTC](https://boards.straightdope.com/t/ac-settings/411319/24 "2007-07-14T11:19:12Z")
\>I’m not sure I entirely understand what you’ve done. Are you using this as a dehumidifier? \>The part I don’t fully understand is the part about running the air over both coils. (??) I’m using it to dehumidify and cool 100% fresh air for my house. What I mean about “both coils” is that the condenser and the evaporator both are inhaling outdoor air. In normal window AC use, the condenser uses outdoor air but the evaporator uses indoor air or mostly indoor air. In my use, there’s only one hose running to this thing and everything else is exposed to the outdoors. ---
**Author:** ![Harmonious\_Discord](https://avatars.discourse-cdn.com/v4/letter/h/74df32/32.png) [@Harmonious\_Discord](https://boards.straightdope.com/u/Harmonious_Discord)\ **Post date:** [July 14, 2007, 11:52am UTC](https://boards.straightdope.com/t/ac-settings/411319/25 "2007-07-14T11:52:04Z")
Look at the baffles by the heating unit and make sure yours are full open and the lower floor is closed up much of the way. I wouldn’t doubt that yours may even be almost closed off, for you don’t bake in the winter. Turn the fan to On not Auto. Adjust the baffles again for winter heating. This has all been said but it’s easy to miss in all the extra discussion that won’t do you any good. On some integrated units the fan speed is adjustable by a service tech for higher output. Don’t monkey with the circuit board yourself, if it is, because you may fry the control board. [Previous page](https://boards.straightdope.com/t/ac-settings/411319.md?page=1)