Question about heating in my new flat! Hi, so I'm living abroad in the UK with one other American in a flat that is heated by radiators. We pay for the heat, and we have a thermostat that controls when the heat is on or off. Is it cheaper to have the heat ON all day, but the radiators turned down low, or to have the heat come on in bursts throughout the day. If so, when are the best times of day to turn the heat on? Any help would be very appreciated.