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Removing heat from my room - Page 2

post #11 of 21
Quote:
Originally Posted by xArchAngelZerox;13520290 
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 =)

So, in addition to the portable AC unit, you also have central AC for your room?
If this is the case, then diverting hot air exhaust from a PC into the vent return is surely an option.

However, if the central AC is not turned on, simply dumping hot air into it might not work well as there is no draft to pull those hot air further away.

But if the return vent somehow leads upward, you might want to take advantage of 'hot-air-rise' fact though.
post #12 of 21
OK, a bit of playing in Sketchup and I came up with this:

Home:


Lan Party:



OK, so a kid with a crayon could probably do better, but it shows my thinking.

Turing your fans off is also an option, I actually didn't think of that (I blame the puppy running round my house). In that case you would only need to break one line with QDCs, run it out and back to the external rad and you are sorted.

For QDCs I would go with Koolance's VL3N's as windfire suggested, or the bigger VL4N's as space isn't an issue (they are slightly less restrictive).

Personally I would go with sorting out the AC unit first, then see where you are at.

Oh, and the foil needs to be on the outside to reflect the sun's heat out of your room. Mesh curtain also help reduce the heat, allow some light in and don't make your room look like a drug lab...


Edited by GingerJohn - 5/15/11 at 9:09pm
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post #13 of 21
Quote:
Originally Posted by Zate View Post
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..
I did the same thing, except I went to Home Depot and bought a couple of sheets of thermal insulation and just used those to put against the windows, inside the blinds. These aren't the ones with the foil on them. Rather, they just feel like foam.

My room was easily the hottest in the house and it was uncomfortably hot inside there. Doing that made it more than comfortable, and with a fan blowing colder air from the hallway into my room, it's actually really nice in here now.
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post #14 of 21
Quote:
Originally Posted by xArchAngelZerox View Post
The Air Conditioner is an Amcor PLM14000E with a 14,000 BTU. I definitely found at least part of the problem.



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.
Yeah... a 14,000 BTU unit will handle the heat thrown off of that PC no problem, especially if your room is only 165 square feet. My sig rig stays on 24/7 in a much larger room with 60 year old insulation and my AC unit of similar strength [I think mine is 18,000 BTU] keeps the room at 75 easily.

Though, I think the humidity down here helps with the heat transfer on the AC's cooling coil.
post #15 of 21
A 14k BTUH window unit should be able to chill that size room way down, even on a 100ºF day with the computers going.

Based on that air filter, I'm assuming there has been an overall lack of maintenance on that window AC unit!

The condenser coil could probably use a good cleaning too.
If you remove the front grill, the unit itself should slide out of its case after removing anywhere from 1 to 4 screws.
Take it outside and clean the muck out of the bottom of it, and wash the condenser coil(the one outside air is circulated though) with a water hose, taking care not to get the motor, or other electrical parts wet.

Let it all dry a little and reinstall it.
It should work much better.
Repeat the process at least once a year.
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post #16 of 21
Quote:
Originally Posted by Bluescreen_Of_Death View Post
Though, I think the humidity down here helps with the heat transfer on the AC's cooling coil.
The humidity of the air through the condenser coil has no affect on cooling, unless it is actual drops of water hitting the coil, but high indoor humidity will reduces the units ability to lower the indoor air temperature.
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post #17 of 21
Quote:
Originally Posted by Caleal View Post
The humidity of the air through the condenser coil has no affect on cooling, unless it is actual drops of water hitting the coil, but high indoor humidity will reduces the units ability to lower the indoor air temperature.
Well that I didn't know. So the specific heat of water vapor is lower than liquid water?
post #18 of 21
I don't know if I have any ground to stand on here, but this is my idea. If you have a basement. then possibly see about dumping the heat into the basement rather then directly into your room. You could also try putting the rad over the return air vent, then the heat would just be spread around the house instead of being centralized in your room.
post #19 of 21
I ducted my computer to vent all of the heat out the window. In fact I ducted two PCs out the same window (only 1 is running atm though).

I got my idea from the method indoor AC use, where they run a tube to the window and have a window insert.

Measured out a triple layer of cardboard, duct taped it together. Covered it snugly in a double layer of plastic from a trash bag. Made my measurements of where fan holes need to be, cut holes that snugly fit 120mm fans. Hot glued the fans into position to create a good seal. Bought dryer metal tubing and affixed that to the fans and the other end to the back of the PC. Took a good day to get all of that done. But for something made out of cardboard, duct tape, a trash bag and hot glue it turned out pretty well.

The only problem with ducting outside like that is to keep the bugs out I had to put fans at the end, which makes it vulnerable to water... So if there's a slight chance of rain I need to take it out
post #20 of 21
Quote:
Originally Posted by thrasherht View Post
I don't know if I have any ground to stand on here, but this is my idea. If you have a basement. then possibly see about dumping the heat into the basement rather then directly into your room. You could also try putting the rad over the return air vent, then the heat would just be spread around the house instead of being centralized in your room.
If you put the rad near the air return, the AC will just move the heat outside. Also, unless the AC runs 24/7 [or atleast the AC fan], the heat won't go anywhere while the AC isn't running.

I think cleaning the gunk out of the AC unit is his best bet. That AC will handle his room no problem if it could move heat properly.
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