I am new to the forum and still new to homebrewing as well. Brewing my first AG batch tomorrow and cannot wait! After spending over an hour per batch to cool my extract brews in the sink with an ice bath, I finally picked up some copper tube to make a Immersion Chiller.
I got a 50' 3/8" copper coil cheap and wanted to maximize the cooling of the coil. instead of using one long 50ft coil, I figured it would be much more efficient to go with dual 25ft coils in parallel. If the tube diameter was larger, the single 50' coil would definitely been beneficial, but I figured with the smaller diameter tube the cooling water in the coil has got to be pretty warm after the first 25ft so how beneficial is the second half of the long coil?
This is what I came up with and thought you all may be interested. I am sure it has been done before but didn't see anything similar while i was looking around for chiller ideas.
The compression tee fitting worked great, no leaks during its test and water was jetting out of the ends of both coils.
I will post my cooling time tomorrow after brew day for those that are interested.
I got a 50' 3/8" copper coil cheap and wanted to maximize the cooling of the coil. instead of using one long 50ft coil, I figured it would be much more efficient to go with dual 25ft coils in parallel. If the tube diameter was larger, the single 50' coil would definitely been beneficial, but I figured with the smaller diameter tube the cooling water in the coil has got to be pretty warm after the first 25ft so how beneficial is the second half of the long coil?
This is what I came up with and thought you all may be interested. I am sure it has been done before but didn't see anything similar while i was looking around for chiller ideas.


The compression tee fitting worked great, no leaks during its test and water was jetting out of the ends of both coils.
I will post my cooling time tomorrow after brew day for those that are interested.