So I have your standard 17 Gallon Coleman cooler, 15 Gallon Spike and SS Brewtech kettles and double burner stand...but the cold has me reading up on you fellow brewers' electric systems. I don't know of any method to make my kettles heat with an element. Is the Grainfather a good option? My only concern with that product is the how it will use water to chill and efficiency concerns I've read about.