Radiator cover and shelves - you could do something like this on the wall behind the sofa and use it to display your pottery collection. Then we can move the tulip painting to one of the walls behind the TV.
aga. Nothing better than an AGA stove in a kitchen. I stayed at sporting estate in Scotland that had a large one like this and it heated the entire manor. Apparently, there is a type that also functions as a furnace as well.