I guess I am different type of brewer. I inherited a 220 volt Bruheat setup several years ago. I really have come to love it because of its consistency while brewing. Of course being true to every homebrewer I decided to try and upgrade or modify my setup. Reading everything I could on electric brewing I decided to try to make my own. I bought a 3000 watt water heater element (low density) for boiling my water. For a controller I bought and use:
Simmerstat® Regulator or Cycling Timer
"Simmerstat" regulators provide a range of control from zero to full heat by opening and closing a snap-action switch in the circuit at short, definite time intervals, convenient for cookers and hot plates, grills, glue pots, drying ovens and similar applications.
The control knob has a scale marking in five divisions from "off" to "full".
Ratings: 15 amps-200/250VAC or 15 amps-100/125VAC.
Web Site: http://www.ogdenmfg.com/etrtherm.htm
I then bought a 32 quart Aluminum Turkey Pot with tap and mounted the element to the pot. I have encased the element and Simmestat in a Air Conditioner fuse box. Works very good and can boil the water in 30 - 35 minutes.
In addition I have a dedicated 220 volt line to my "Brew House" and I put a 25 Amp GFI Circuit breaker in the panel.
The whole setup cost me less than $100.00 dollars and several gallons of homebrew from consults with my favorite electrician. Note very important... If you try this setup make sure it is checked out by a sober master electrician....
If you have questions let me know.