Quote from: TheWoodser on January 01, 2014, 08:52:50 PM

Quote from: U1TRA_L0RD on January 01, 2014, 11:51:23 AM

Quote from: U1TRA_L0RD on December 31, 2013, 11:41:47 PM

Quote from: yochdog on December 30, 2013, 10:50:32 PM

Quote from: jap1968 on December 30, 2013, 07:39:43 PM

Quote from: deepceleron on December 29, 2013, 10:47:13 PM

We have a lot of the "silliest" answers here, from people who have no datacenter or AC experience. You put up a bounty, you get stupid spammers and beggars.

Before qualifying any answer as silly or stupid, I think we need to know some additional considerations such as the amount of money he is willing to spend.

If we take into account the kind of unit he is considering to buy, that sounds more like a kind of garage project, in the line of DIY and low cost solutions.

In the company where I work, we recently did an investment in a cooling solution. The company spent a bit more than 50,000 euros (about 80,000 USD) in a solution based on in-row equipment from APC, like the one linked below. This was a very small datacenter with a power consumption much lower than 40,000 W

http://www.apc.com/products/family/index.cfm?id=379

So, if someone is willing to spend an amount in the range of 3000~4000 USD, maybe the silly solutions are those intended for real datacenters. May be, if he had a budget in the range of 100,000 USD he would be addressing his doubts to a professional cooling consultant. May be he would be ordering and paying a whole study and a project instead of being offering 0.25 BTC (about 180 USD) looking for ideas into a community of unknown people.

This.

I am looking for low cost, DIY solutions. This will be built out in space not originally intended for Crypto mining. I want to keep expenses to a minimum.....no need to spend all the profit on cooling the damn things.

If you want, I suggest using a dehumidifier to keep out moisture and look at this expert on youtube showing his mining rig shelf and how he sets up cooling. http://youtu.be/G5f_e4P6gMA

My video is a good example though, because the duct is sucking out the hot air as the fans cover the front portion of the shelf .

I watched the video....Is there anything sucking the air into the duct? To me I only saw the large box fans on the front. It looks like to me without proper pressurization of that air it would be hard to make it travel through that ducting.

Thats why theres inline duct fans inside the duct.