Immersion Chiller cooling efficiency

[odie313]

I have a B3 Super Chiller. I noticed that the coils are touching each other. I was wondering if I space the coils apart will I increase the cooling efficiency. I also plan to add a Jamil style whirlpool return in the distant future. Will this effect the spacing also. If so, which would be the better option.

 

[audger]

if I space the coils apart will I increase the cooling efficiency.

possibly, but the amount would likely be unnoticable.