Definitely kola - it was very cold when I was out earlier tonight, but it seemed to have gotten warmer by the time I came home. Strangley though, we dont have a radiator in the kitchen - fine when you are in there cooking, but cold when you come down in the morning - the one in the utility room is tiny, and the dining room one round a corner, so they don't have much impact even if you leave the doors open - we do have a fan heater built into the kickboard, but it only seems to work on cold - some more of the snagging that the previous owners never bothered to get fixed!