Best way to control 2 htg elements?

[Blueraven]

Getting close on El-2 column and want advice on controlling 2 diff wattage elements into a keg..

I rem that if you add resisters in series they just add but in parallel they are added as 1/r1 + 1/r2...

anyway, should i build a small 220v circuit to switch from series to parallel or can i buy that fairly cheap..?

Also, i fig, from reading and w/o running the numbers, on a 2" diam 4' high refluxer, i wld need abt 800-1000 watter and a 3000 watter..?

anyway, i read the stuff on ditillers site but not sure most efficient way to go on this..

Series/Parallel circuit or Triac or Pid or ??

will buy it if it will work well and dumbo proof <G>