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It's an older boiler...15+ years. A Potterton. I have no thermostat in my flat. Instead, there are 2 dials on the boiler for raising/lowering radiator and tap temperature. Several rooms are unheated, including the kitchen and my bedroom...the largest of 3. It's a 60's maisonette on 2 floors. Though our building had super modern exterior insulation applied about 7 years ago, it still is difficult to ever get it comfortably warm. Even with radiators on. I guess I'm asking if I should run the heating steadily for a day or so to get the fabric of my flat warmer. I fear it would be a losing, costly battle.
I'm going to purchase a thermometer so I can check the actual temperature. I had one years ago...pre-insulation...and in weather not as cold as this the lounge temp was mid 50s...13°
Think I've rambled enough here.