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Central Air Question  
User currently offlinePlanespotting From United States of America, joined Apr 2004, 3526 posts, RR: 5
Posted (8 years 1 month 3 days 2 hours ago) and read 952 times:

Hey folks,

I have a small question regarding your use of central air conditioning. How many of you not only close the interior part of your window (the large bulky part that is fairly easy to move up or down...not sure of the technical term), but also the storm window part of the assembly?

My parents never closed the storm upon turning on the air conditioning, so of course I don't either. However, my roommate Andy apparently thinks this is a hard and stead-fast rule about air conditioning a house, and expressed his feelings in a fairly angry fashion -- Basically I said that "i don't think it matters that much" and he was like "NO, don't you fucking say that, it matters A TON" or something like that.

Anyway, am I crazy for not closing the storm windows when I turn on the a/c, is he crazy for thinking it matters so much, or (the more plausible idea) are he and I both retarded and just getting frustrated because ready to move out of this house (in 12 days!) and into our own apartments.

haha.


Do you like movies about gladiators?
9 replies: All unread, jump to last
 
User currently offlineBobster2 From , joined Dec 1969, posts, RR:
Reply 1, posted (8 years 1 month 3 days 2 hours ago) and read 949 times:

There's an interesting device called a "thermometer". You could try something called an "experiment".  Smile  Smile

User currently offlineVSLover From United States of America, joined Feb 2004, 1897 posts, RR: 22
Reply 2, posted (8 years 1 month 3 days 2 hours ago) and read 944 times:

the termometer wouldnt work because the premise of central a/c is that the temperature inside the house stays consistent, as gauged by the thermostat.

what he would need to do would be to examine the energy drawn by the a/c unit with the windows up and then again with the windows down. however to get sufficient results, atmospheric conditions would have to be identical on both days the test would be run.

in essence, unless you have windows from decades ago, excess energy used in running the a/c will be negligible.


User currently offlinePlanespotting From United States of America, joined Apr 2004, 3526 posts, RR: 5
Reply 3, posted (8 years 1 month 3 days 2 hours ago) and read 944 times:

i think he's more concerned about energy costs...


Do you like movies about gladiators?
User currently offlineBobster2 From , joined Dec 1969, posts, RR:
Reply 4, posted (8 years 1 month 3 days 2 hours ago) and read 940 times:

Quoting VSLover (Reply 2):
the termometer wouldnt work because the premise of central a/c is that the temperature inside the house stays consistent

It would work. If heat is leaking through the window when the storm window is up, the temperature near the window will go up. Then the temperature near the window will go down when the storm window is closed. Repeat several times, see the temperature go up and down.

Quoting VSLover (Reply 2):
atmospheric conditions would have to be identical on both days the test would be run.

You think this will work and the thermometer won't? I disagree. How do you get the same atmospheric conditions on two days? The wind would have to be the same, the clouds would have to be the same, atmospheric haze would have to be the same, and of course the temperatures would have to be the same.


User currently offlineBobster2 From , joined Dec 1969, posts, RR:
Reply 5, posted (8 years 1 month 3 days 2 hours ago) and read 930 times:

Quoting Planespotting (Reply 3):
i think he's more concerned about energy costs...

Elementary thermodynamics.  

OK, at this point I'm in over my head. Help.

But you should be able to calculate how much heat is flowing through the window and the extra energy it takes to compensate for the added heat. I can't, but maybe somebody can.  

If you do the thermometer experiment and find little difference, you can forget about the calculations. That's what I'm hoping will happen.

[Edited 2006-07-20 00:58:21]

User currently offlinePlanespotting From United States of America, joined Apr 2004, 3526 posts, RR: 5
Reply 6, posted (8 years 1 month 3 days 2 hours ago) and read 926 times:

guys...i just want to know if you close the storm window or not.

i dont' really care whether or not it makes much of a difference or not...i'm pretty sure the difference would amount to a few dollars per month at the most in the energy bill...



Do you like movies about gladiators?
User currently offlineBobster2 From , joined Dec 1969, posts, RR:
Reply 7, posted (8 years 1 month 3 days 2 hours ago) and read 917 times:

Quoting Planespotting (Reply 6):
...i just want to know if you close the storm window or not

YES. Of course. A double window provides better insulation. Better insulation is good. Even if doesn't make a big difference, use all the insulation you have available. Why argue about it?


User currently offlineSCCutler From United States of America, joined Jan 2000, 5499 posts, RR: 28
Reply 8, posted (8 years 1 month 3 days 2 hours ago) and read 917 times:

First of all, from down here in A/C Country (104 f outside now!), we don't even use storm windows.

But I can also tell you this: storm windows are effective at reducing thermal transfer through a window, in either direction, so they should certainly be beneficial during the warm weather months, as well as the cold ones.



...three miles from BRONS, clear for the ILS one five approach...
User currently offlineBill142 From Australia, joined Aug 2004, 8442 posts, RR: 8
Reply 9, posted (8 years 1 month 3 days 1 hour ago) and read 908 times:

It depends on the system. We use an evaporative system which requires the windows to be opened to create a flow of air. My sisters system is a refrigerant based system and it requires the windows and doors to be closed otherwise the system will be overworked.

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