cold has very little effect in terms of fuel or kettles , however same can't be said for my body . use a lot more fuel running to and from the grill . amazing how fast your fingers can freeze at -32c with a -43c wind chill in spite of world class speeds loading and unloading the food lol. added bonus is watching the neighbors stare in disbelief loading your kettle in a pair of crocs touque and a hoodie . only once i didn't grill because it was too cold and regreted it after my first bite .it's not as bad as you think go for it !