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rowan · 05-02-2012, 09:13 PM

With 5-6 computers on 24/7 I have a similar problem in my home office. In winter it's great as the waste heat keeps the room warm: I have the central heating vent CLOSED most days, and I can switch off the house heating completely when no one else is here... but in summer it's a real killer.

Slightly wild idea: if you contain all of the devices inside a rack with a defined exhaust point (like the upper fan), you could place a radiator over it to sink the heat, with a pump and tubing run outside leading to another radiator, moving heat from the indoors to outdoors. Even on a hot day your exhaust temp should be higher than the outside temp, so it will still shed heat from inside. The other advantage is that you don't need to duct air in and out. Remember to insulate your tubing so it doesn't radiate all the heat on the way out.

05-02-2012, 09:13 PM
rowan Too lazy to set a custom title Join Date: Mar 2002 Location: Australia Posts: 17,373	With 5-6 computers on 24/7 I have a similar problem in my home office. In winter it's great as the waste heat keeps the room warm: I have the central heating vent CLOSED most days, and I can switch off the house heating completely when no one else is here... but in summer it's a real killer. Slightly wild idea: if you contain all of the devices inside a rack with a defined exhaust point (like the upper fan), you could place a radiator over it to sink the heat, with a pump and tubing run outside leading to another radiator, moving heat from the indoors to outdoors. Even on a hot day your exhaust temp should be higher than the outside temp, so it will still shed heat from inside. The other advantage is that you don't need to duct air in and out. Remember to insulate your tubing so it doesn't radiate all the heat on the way out.