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post #1 of 5 Old 02-16-2019, 04:54 PM - Thread Starter
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DIY in-wall A/V rack into closet cooling questions

As title says, i"m doing an in-wall DIY A/V rack into a 3 ft x 5 ft closet. There is not ventilation planned as of now (pending responses to this post). I'm not running a bunch of amps and servers ... just an 11.2 AVR and an Xbox at the moment. I've looked at rack mounted as well as individual "sit on top" cooling units and I have a couple questions. With regards to rack mounted fans with the exhaust either into the closet or back out into the theater room, aren't you essentially just circulating ambient temps regardless? Does the fan really do any cooling of the unit/s? Also, for a closet that size, would there really even be a need to cool one AVR and an Xbox, or would the in closet temps actually get high enough to be an issue? Thanks!
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post #2 of 5 Old 02-17-2019, 08:22 AM
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You really won’t know if you need an external cooling system until you get the system up and running. But it doesn’t hurt to have a plan in place if that becomes a necessity. I’d say that if temperatures get up to 100 degrees in there, I’d be concerned.

And actually, the smaller the space, the worse the potential for heat build-up is. Following the “it’s small" logic, there would be no problem at all in something like an entertainment system cabinet, but everyone knows that’s not the case.

Any cooling system will exhaust air from the closet out into the room. You aren’t just “circulating ambient temperatures” because the air inside the rack will be hotter than that in the main room. Ideally, the cooling system would exhaust at the top of the closet, and there would be an intake at the bottom, pulling in cool air (relative to what’s in the closet) at the bottom. The components are “cooled” eliminating would otherwise be heat-build up in the closet.

AC Infinity is the go-to brand for cooling systems these days.

https://www.acinfinity.com/closet-room-fan-systems/

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post #3 of 5 Old 02-17-2019, 08:33 AM
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Quote:
Originally Posted by timdhawk View Post
As title says, i"m doing an in-wall DIY A/V rack into a 3 ft x 5 ft closet. There is not ventilation planned as of now (pending responses to this post). I'm not running a bunch of amps and servers ... just an 11.2 AVR and an Xbox at the moment. I've looked at rack mounted as well as individual "sit on top" cooling units and I have a couple questions. With regards to rack mounted fans with the exhaust either into the closet or back out into the theater room, aren't you essentially just circulating ambient temps regardless? Does the fan really do any cooling of the unit/s? Also, for a closet that size, would there really even be a need to cool one AVR and an Xbox, or would the in closet temps actually get high enough to be an issue? Thanks!
I bought my Sony AVR and in less than a month it stopped working after cranking it loud one evening. Sony repaired it under warranty and I bought two USB fans for $15 and stuck them on top of the receiver. It is now as cool as a cucumber and the fans are silent.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

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post #4 of 5 Old 02-17-2019, 08:37 AM
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post #5 of 5 Old 02-17-2019, 09:54 PM
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Well your listening room has some air circulation, otherwise the humans would not be comfortable. Cold air naturally settle on the bottom of the room and hot air rise up, so in your case, not really high power application but may want to mount 2 registers, one toward the bottom of the door and anther on toward the top, is probably all you need. Whether use fans is up to you, can always add later. That's all I have too and my equipment are drawing ~300 watts.
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