Wort temp, using gravity flow, goes from boiling to 75'F to 80'F in a glass carboy. This is plumbed and mounted. You can see the aerator and I put a tee in on the supply to the water filter to allow one source to provide water for both. There is a quick disconnect on the inlet side for the hot wort to be piped into.
Finally, I put a second SS tee on the end of the areator block, and then used a system of fittings to connect to a 1/4" MPT to 1/8" compression fitting that I drilled out to fit the 5/32" diameter thermometer. I inserted a small o-ring rather than the compression fitting to make it water tight.
I finally just bit the bullet and sprung for the 22 cu-ft O2 refillable bottle and regulator.
