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Removing heat from my room

post #1 of 21
Thread Starter 
As summer is already upon me here in Texas, with two computers running full time in my room, it gets above 95F in here at times, without the A/C. I have a portable A/C in my room that I turn on when I'm home, but even blowing full time at 64F, it only brings the temperature of my room down to 85F, and that's with the lights off.

I've been considering ways to remove the heat from my room. Both of the two computers are next to windows. One of the two computers is water cooled (two GPUs and CPU in one loop), so I'm wondering if there is a way to safely mount a radiator outside the window, so that the heat is leaving through that, outside, instead of into my room. I don't want to permanently tether my PC to my house though; every now and then I like to go to LAN parties, and I'd like to be able to disconnect my computer from this second rad that would be outside my window.

So, I have a few questions about the possibility of this. I've heard of quick disconnects, but don't really know a whole lot about them. Would it be possible to have a secondary external radiator that I can remove my PC from to take away from the house? Obviously I'll leave my internal rad that I have now in the computer, but while I'm at home I'll turn the fans off of it so that the outside radiator is the one blowing the heat out, and when I'm abroad I can use my internal rad. I don't want to have to empty and refill my loop though.



Secondly, I'm curious if anyone has had experience ducting hot air outside through a window. I could do this with both of my PCs, if I can attach a duct to the top of my case where my rad exhausts heat. Would it be most efficient to run air ducting out of the window, or have it go straight up through the ceiling and roof?

I've also seen a bit on geothermal loops...this would probably require the most work, and again, I don't want my computer tethered to my house. If I go this route, would it be possible to easily disconnect my computer from it and use the internal rad at a lan party?


If you have any other suggestions let me know. I'm up for anything...the heat in here is unbearable.

Thanks =)
    
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post #2 of 21
Fix the window unit, or buy a new one, it clearly is not working properly. tongue.gif

An external radiator sitting outside in the summer in Texas isn't a good cooling option.

You could duct off the case to outside, but 100% of the air you loose from the house to outside will be replaced by outdoor air leaking into the house somewhere else.
It doesn't sound so bad, but just 100cfm of 24/7 forced ventilation from the house can have a pretty significant impact on energy costs and comfort in the whole house if it has central AC.

I do HVAC work, house leakage testing, and energy audits in north Texas, so I'm pretty familiar with the climate. wink.gif
Edited by Caleal - 5/15/11 at 7:47pm
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post #3 of 21
What BTU rating is your current AC unit and what's the square footage of your room?
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post #4 of 21
Quote:
Originally Posted by rocketman331;13519694 
What BTU rating is your current AC unit and what's the square footage of your room?

this
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post #5 of 21
Clean the window unit. I have a 14,000 BTU portable and a 8,000 BTU window unit AND (up until a few months ago) was using a smaller 5,000 BTU window unit that finally gave up the ghost. Folding on sig, and a Q9550/dual GTX 465 rig folding 24/7 made my room unbearable too, but not as hot as your room. Cleaned the bigger window unit and I saw a decent enough improvement to only run the 2 larger AC units.
post #6 of 21
Check the filters on the ac?
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post #7 of 21
It is possible with QDCs, sure. Give me a minute and I will draw up a diagram as to how I could see it going.

Couple of issues would arise though:

1. I am assuming that it is hotter outside than in your room, this would mean that your normal temperatures would increase with a rad outside due to the higher ambient.

2. If you wanted to dump the majority of the heat outside you will need to disconnect your case rad from the loop, otherwise under load you will only be dumping half the heat outside, and at idle you may even be bringing heat into the room (if it is really hot outside).

What kind of budget were you looking at for this? The fact that you are considering geothermal would lead me to believe that you have a fair bit of cash to dump on this project.
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post #8 of 21
I dropped the ambient in my computer room 12 degree's by covering the window with cardboard with aluminium foil on it. No joke, made such a huge difference. the windows faces the sun 8 hours a day and the room was heating up quite a bit. Air conditioning was not keeping it cool, it was the hottest room in the house.

now my son complains that it's too cold.. hehe..
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post #9 of 21
1. Using QDCs is a good way to mount/dismount an external rad from your main loop inside your PC. You need 2 pairs as shown in the pic below.
When you want to take your PC to a LAN party, just connect QDC Male 2 to QDC Female 1.

If you do put the rad outside, make sure it is under a shade.

2. I suggest you to use a duct to directly connect to an opening in the window. Forget channeling it up to roof because the hot exhaust air loses its velocity fairly soon after leaving the case exhaust fan. So, you will need quite a number of fans to pull the air up to the ceiling height to make a long trip before going out through the window.

Even when you use a direct duct, I still recommend you to use, at least, 1 strong 120mm fan at the duct end to form a pulling draft for exhaust. See pic 2 below.

I would rather choose this option over putting the rad outside.
Edited by windfire - 5/15/11 at 8:17pm
post #10 of 21
Thread Starter 
The Air Conditioner is an Amcor PLM14000E with a 14,000 BTU. I definitely found at least part of the problem.

photo.jpg

Eek. Ran some water through it and it's drying now. My room is about 11x15, so roughly 165 square feet, but I will tell you, there is a lot of crap in my room taking up space.
Quote:
Originally Posted by GingerJohn;13519743 
It is possible with QDCs, sure. Give me a minute and I will draw up a diagram as to how I could see it going.

Couple of issues would arise though:

1. I am assuming that it is hotter outside than in your room, this would mean that your normal temperatures would increase with a rad outside due to the higher ambient.

2. If you wanted to dump the majority of the heat outside you will need to disconnect your case rad from the loop, otherwise under load you will only be dumping half the heat outside, and at idle you may even be bringing heat into the room (if it is really hot outside).

What kind of budget were you looking at for this? The fact that you are considering geothermal would lead me to believe that you have a fair bit of cash to dump on this project.


Geothermal is definitely a last resort. I really don't want to put that much money or time into digging a huge hole, and my room is on the front corner of my house, so I'd have a pretty tough time convincing the homeowner (aka Mom) to let me dig a hole in the front yard. For having an external radiator, I was thinking that if I turned the fans off of my internal rad off with my fan controller, and turned on fans on the rad outside, that most of the heat dump would be outside. But, my room also faces the sun 8-10 hours of the day, since it's on the corner, so a rad might not be the best solution. I do have bushes in front of the window next to my watercooled PC, so I might be able to shield it from a lot of sun by putting it down on the ground in the bushes...but getting to the wall through all those bushes outside to do it would be nearly impossible.
Quote:
Originally Posted by Zate;13519801 
I dropped the ambient in my computer room 12 degree's by covering the window with cardboard with aluminium foil on it. No joke, made such a huge difference. the windows faces the sun 8 hours a day and the room was heating up quite a bit. Air conditioning was not keeping it cool, it was the hottest room in the house.

now my son complains that it's too cold.. hehe..

Did you have the foil facing the inside or outside of the room? Did you leave the foil flat or crinkle it up? I like natural light in my room...but this heat is ridiculous. I might invest in those dark screens I see on newer houses too.
Quote:
Originally Posted by windfire;13519969 
1. Using QDCs is a good way to mount/dismount an external rad from your main loop inside your PC. You need 2 pairs as shown in the pic below.
When you want to take your PC to a LAN party, just connect QDC Male 2 to QDC Female 1.

If you do put the rad outside, make sure it is under a shade.

2. I suggest you to use a duct to directly connect to an opening in the window. Forget channeling it up to roof because the hot exhaust air loses its velocity fairly soon after leaving the case exhaust fan. So, you will need quite a number of fans to pull the air up to the ceiling height to make a long trip before going out through the window.

Even when you use a direct duct, I still recommend you to use, at least, 1 strong 120mm fan at the duct end to form a pulling draft for exhaust. See pic 2 below.

I would rather choose this option over putting the rad outside.

This is really helpful. I was definitely going to put a good fan at the window to pull air out. Both of the computers are literally less than a foot from their respective windows, and for the aircooled pc, it would be just a straight line out the back. I'd seal off the top exhaust on the case and the rear gpu exhaust and the general case exhaust fan would blow into a air duct, and out the window. I'd still get a fan though, even being so close. For my watercooled PC, I'd have to figure out how to attach the ducting to the top of my pc where the rad puts out the heat.

I'm assuming that this is going to be the easiest way to do it.


Also, one other thought, and I'm not sure if this is a good idea or not, but I also have a return vent for my central A/C in my room. Would it be a good idea to duct the air into the return vent?

Thanks for the replies everyone, very helpful =)
    
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