12 to 13 degrees c! You could sublet part of your case as a meat packing plant !
The water block had frost starting........... I filled the socket bin (center of cpu socket) with neoprene to avoid any condensation build up and siliconed the outer rim filled the socket with die electric and put a run of silicone around and put neoprene on it. I also put die electric on the outer clamps to avoid any exposed metal as well as spray laquered the water block so it cannot build condensation ie metal exposed to direct relative humidity.
Talked to Coolit today and they were amazed I got it this cold, said fan layout would have to be perfect essentially as cool as an open case with no heat build up internally just cooler air.
Its on medium now and sitting at 24 degrees and will remain there till I OC or do a wrap in which ccase Ill run it on high.
Normaly there is NO need for insulation, he said I am 1 in a handfull ever to take it that far. Saweet! So its basically plug and play for anyone out there.
Disclaimer: Coolit is a really great product, it works flawless. I had an insulation issue directly related to my over cooling of the case and fan speeds. This is not an issue unless your me. I designed this to work in a 100 degree shop and OC the thing pretty hard so I went WAY overboard on case cooling.
Sorry had to do that i felt bad that I did this and made it sound like a questionable product. Its not.....
It got rave reviews from every site that has demo'd one and did tests on them.