External Rad at Window

I have Mayhems X1 red in my loop. I used to use Carplan De-ionised water and Primochill Liquid Utopia but you can't get Liquid Utopia in the UK anymore so switched to X1. I have had no problems with it so far.
 
Been using a external rad since l first started water cooling, my desk sits in the living room in one of its alcoves. The rad hangs at the back off the foot well to one side of my pc and never had any trouble at all.

It would be a pain in the rear to plumb the rad to the window but was thinking of cutting a hole in the floorboard just a little bit smaller than my rad so it gets the cool air below from the crawl space. In summer even in a hot spell the air is cooler than the living room with the windows and doors open, was wondering what members thought.
 
OLDPHART said:
Been using a external rad since l first started water cooling, my desk sits in the living room in one of its alcoves. The rad hangs at the back off the foot well to one side of my pc and never had any trouble at all.

It would be a pain in the rear to plumb the rad to the window but was thinking of cutting a hole in the floorboard just a little bit smaller than my rad so it gets the cool air below from the crawl space. In summer even in a hot spell the air is cooler than the living room with the windows and doors open, was wondering what members thought.
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I was considering this before doing the garage thing, but I ruled it out because I think it would end up dragging smells in from the crawl space.
 
String said:
Temp dropped to 2C last night, fluid temperature dropped to 14C. :eek:

@VKleita @pastymuncher are you guys using additive in your loop?
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Deionised water and silver coils with a tiny snip of PT Nuke.

I've had my water temp down to 4 'c with no issues whats so ever, as mine is in the window i can just shut it when it gets really cold :)


You dont want to start doing any multi pump type arrangement really unless they are identical pumps,. they will cause large Resistance/slow of fluid unless both running identical speeds.

If you have an internal rad (You said one still int he pc ? ) That will actually heat up the liquid as any rad tries to equalise with the air temp around it.
As such you actually have a cooler room, this will also help avoid any form of Condensation build up I reckon.

Does that help at all ?
 
@VKleita yes, thanks for that.

I'm going to box in the external radiator to insulate it a bit and see what affect that has. I've run a temperature probe through the wall so I can see what temperature the air is around the radiator, and I also have one hanging out the window so I can compare the radiator temp with ambient.

The purpose of this isn't really to get the lowest temperature possible, it's more to do with getting the heat to exhaust in a different room. It was a bit weird taking the headphones of after a good couple off hours last night... And the room was not only cool but there wasn't a sound coming from the PC. :)
 
Which is awesome... But in the very cold months you probably want that extra heat dumped into the living space. Reduced heating bill.
 
pastymuncher said:
Winter has arrived!! My water temp is down to 12.1 degrees C today. :D:D:D
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Yep, same here. It's 8C in the garage right now and water temperature is 14C. I've got some time this afternoon, so will install my little 40w heater and a frost stat. I'll see if it can keep the air space around the rad above 10C as that's definitely as low as I need it to be.
 
Down to 11.4 degrees C now. It usually does that here in the mornings but will warm a little in the afternoon when the sun swings around.
 
VKleita said:
nutters, I got as low as 15, but the heat from the corridor below comes up through the floor to heat the office.
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Back in 2010 we had outside temperatures down to -18 degrees C during the day and even though I had my window open barely a crack (too cold for anything more) I had water temps down to 3.6 degrees C!! The wife wanted this thing called central heating on which stopped it going any lower. It was great and I had cpu and gpu temps in the single figures while gaming.
 
@String why are you only water cooling the GPU with that level of cooling capacity? I'd have the outlet from the GPU going into a cpu water block if I were you...
 
Prozn said:
@String why are you only water cooling the GPU with that level of cooling capacity? I'd have the outlet from the GPU going into a cpu water block if I were you...
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Because right now it's unnecessary. The Cryorig cooler has push pull fans and they make less noise than the PSU fan. The CPU is at 4.4GHz and performing nicely.
 
Update:

I decided to fit a little bypass and then mount the radiator properly.

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Next, I boxed it all in and applied some insulation to make it snug. I've installed an anti-condensation heater and a frost stat.

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Finally, I've installed a little flap on top that will keep the heat in if it's Brrr.. and this will lift up automatically to let the hot air out when the fans ramp up to 100% when gaming.

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Now I just need to monitor the numbers and tweak accordingly. My OCD is now at bay. :p
 
Update:

It's been 2C overnight and into this morning, and my fluid temperature has dropped to a minimum of 19C. What a difference a little insulating blanket has made. The air inside the radiator enclosure is currently 13C. I've checked the power meter and have confirmed that the heater has not been on at all. It looks like the air inside the enclosure is equalising with the radiator temperature.

Yesterday, the external temperature was 14C and the fluid temperature was also sitting around the 20C mark. It's like the external air temperature now has no influence on the fluid temperature, and during the winter that is absolutely perfect. If the external air temperature goes proper sub-zero then I'm reasonably confident that the heater and frost stat will keep the fluid temperature above freezing levels.

I'm really pleased with the result, it's been well worth the effort.
 
String said:
Update:

It's been 2C overnight and into this morning, and my fluid temperature has dropped to a minimum of 19C. What a difference a little insulating blanket has made. The air inside the radiator enclosure is currently 13C. I've checked the power meter and have confirmed that the heater has not been on at all. It looks like the air inside the enclosure is equalising with the radiator temperature.

Yesterday, the external temperature was 14C and the fluid temperature was also sitting around the 20C mark. It's like the external air temperature now has no influence on the fluid temperature, and during the winter that is absolutely perfect. If the external air temperature goes proper sub-zero then I'm reasonably confident that the heater and frost stat will keep the fluid temperature above freezing levels.

I'm really pleased with the result, it's been well worth the effort.
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Sounds like a good result! :)
Keep an eye on things and build your confidence, but sounds like you have covered all your bases. :)
 
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