You'd need at minimum a 220v 30amp circuit, preferably with a GFCI breaker. If you wanted everything in the same control box, you'd probably want larger than a 30amp circuit. Additionally, if you're using one in a HLT, or want to control boils, you'd need PIDs, SSRs and thermocouples.
Go check out this great resource maintained by Kal from the forums:
I love my all electric and doubt I'll ever move to anything else, but fair warning: its not the cheapest of systems to build.
Originally Posted by paulthenurse
And we also decided to make a Barley Wine this weekend as a starter. (That is probably one of the silliest sentences I've ever written.)
On tap: Russian Imperial Stout (nitro), Imperial Red, Kentucky Common Rye, Ruination Clone.
Secondary: RedWine (Imperial Red x2)
Primary: Chocolate Rye Stout, Utopias Inspired 2nd attempt, Oberon Clone
On Deck: Imperial Red, Kentucky Common. TBD.