AI adjacent. I built a (semi) geothermal loop to keep both my Main dev/game box and AI cluster

AI adjacent. I built a (semi) geothermal loop to keep both my Main dev/game box and AI cluster cooled using the Radon fan vent in our subfloor. https://www.youtube.com/watch?v=SZ81ZC3gsh8 Temps in that space stay ~75f in the summer even when it's in the upper 90s due to the air being cooled by the ground as it's pulled in from the other side of the crawl. Can reject the heat of 4 V100s running at 300W without raising the water temp above 95f (35C)