I'm planning my brewery build and had a question on a HERMS coil.
I'm planning on installing a HERMS coil in my boil kettle that will double as a chiller in my two vessel setup. This will be a small 3-4 gallon batch setup. My kettle is 11 1/2" in diameter. I would like to put a 1/2" stainless steel coil in the kettle, but the vendor for the coil can only reasonably do a 10" coil which would only leave me 3/4" between the coil and kettle wall.
Assuming I can get all my connections to fit, will I be okay with the coil that close to the wall?
Or should I look into 3/8" tubing where I can get a smaller diameter coil and more room between the wall and coil.
I'm thinking the 3/8" would be better with more room and since I'm only doing small batches the 3/8" would be fine for cooling and HERMS.