Was but the room turned into a furriness hitting 47Degrees, the A/C units are shit anyone any recommendations on cooling that doesnt involve proper DC grade heat extraction and recovery?
This is what I thought when I saw the pictures. I was laughing very hard when I saw the mining gear and the two little air cons on the wall.
I pretty much had the same experience in 2011 with the company which outfitted our new offices and therefore the server room (5 racks only, with normal computing gear ... no miners). I told them, when I looked at it (almost the same units you have), that this is not going to work. 3 kW cooling compared to 12 kW power consumption for computation. It took them 2 iterations (!!!) to believe me, upgrading twice, then replacing it entirely with 20 kW cooling systems. They could have had this done at a fraction of the price they paid in the end, if they would have asked someone who has a clue (not me, I'm not an expert in cooling, but I know when something is hugely undersize/estimated).
So my advice to you is: Do not toy around with stupid cheap ideas! Get an expert opinion and just spend the money once and not 3 times with BS crap. You can reuse the small units you have in your house (at home), they are good to cool around 50 to 60 sqm where people work/live (but not computing gear, except the odd PC or laptop).
Good luck!
one4many