I tend to find with large old houses with tall ceilings and big rooms, its not the the cold sunny days that tend to be so problematic (although they may represent quite a heating challenge) it's the overcast, dull, damp, windy days creating untold draughts, blowing down chimneys, thru air bricks etc that gets into your bones, are far worse to deal with.
Last edited by JohnHarris; 27/01/22 10:07 AM.