On the boil kettle, I have a 4500w heating element. I don't have a temperature controller on it, its just a on off setting. For 10 gallons, it works fantastic. For 5 gallons, it's too powerful. I don't want to put a temperature controller on it, because I don't want it cutting on and off.
I'd rather be able to dial down the power. I know other people have this issue, but I don't know what to search for. A friend of mine recommended using a solid state relay, combined with arduino to accomplish everything. I'm curious what would be the simplest, and most cost effective method. Or just suggestions what to search for. Thanks!