That's the trouble with electrics ... once you buy one, you feel compelled to use it to get your money's worth, ammiright?
Anyway, a true purist wud NEVER use an electric, wud tha? It'd been over a nice smoky hearth to give it that tang, like figgy puddin'.
Are you say its only the water temperature that matters, then? Is yer last name 'Kelvin' by any chance?