So I've found a great deal on a 240 V, 5500 watt heating element and am considering switching to electric brewing. What is the best way to control this? I've seen the Tower of Power from Blichmann and found another pre-built brew controller on Amazon. For the prices I've found those items it would just be cheaper and easier to buy an induction surface since my pot is induction capable. Does anyone have a good DIY for stuff like this?