ive got one of them meter things here that show what uses what electric i use.i did have halogen heaters in the shed but not anymore. i just use a heat lamp for the dogs although my biggest problem is not electricity consumtion is placeing it somewhere they dont keep blowing the bulb knocking it jumping onto the bed board
Get a ceramic heat bulb then Paul, i have one in my growers shed, they are tough and wont break on contact
i was looking at them today in the countrywide store, might give one a whirl