Quote from: sony87 on February 01, 2016, 07:50:18 PM

Quote from: sabercatt on February 01, 2016, 05:14:44 PM

just so your following. he just did the math at 12kw --> 12,000 watts. not 1.2kw --> 1,200 watts.

yes i know that.... i have 2x12kw so it's relevant calculation. Now the point is how to remove some heat from the GPUs so i can use AC with 32k BTU i have in mind. Any suggestion for frame, gpu position and etc ?

I agree that blowing the heat outside along with a dedicated (and filtered) inlet from the outside is usually the best solution.

As for your situation, remember that normal AC unit ratings are based on keeping a room at a comfortable temp and having enough overhead for the AC unit to cycle on and off. If you allow the room to get up to say 85-90F (I do and my BTC miners are happy with it) use that as the temp setpoint and as long as you don't mind paying the electric bill for the AC compressor running non-stop then your 32kBTU system may be adequate especially in cooler climates/winter. Also, if you are working with a HVAC contractor on the cooling, mention the ability to have a higher air temp feeding the rigs. How high? That you have to test to find out what keeps rig temps at safe levels. That changes the cooling needed equation a lot.