CFC length for 10 gallon batches

[bakins]

What length CFC should I use for 10 gallon batches? Is 25' good? I had been doing no-chill for over a year, then went back to chilling and remembered why I hate my plate-chiller (yes, I used hopbags and whirlpooled).

 

[Reddog68]

Mine is 25', and it works great for 10 gallon batches.

 

[orangehero]

You may want a larger diameter for larger batches so you can get it through the chiller more quickly....though if I remember correctly the time is not that long even for 10 gals at the proper flow rate for 25ft. 3/8" copper.