So after several months of extract brewing, and reading about HERMS/RIMS, Single Tier/Two Tier/Three Tier systems, and just about every article I can find on this forum I decide to build myself a HERMS system. I am modeling mine after The Pol's system.
I have a couple questions and was wondering if anyone could field them. First, I can just plug my heating element (120V 1500W element) into my Johnson controller. Secondly, what size HERMS coil should I use? I assume a 25 ft. 1/2 in. coil but don't want to assume anything with this system. Also, am I going for 1/2 in. OD (outside diameter) or ID (inside diameter). Also, does anyone know a good place to buy 50 ft. of copper? I am also looking to build a new IC, and would like to buy all the copper bulk.
Those are my questions right now. Hopefully, when I am done with this project I will have a large write up so I can give something back to the community. But until then, thanks for any help.