how can I make it warmer?
The main problem, apart from the fact that it has two outside walls, one east-facing, is that the beautiful polished floorboards which are DH's pride and joy, have huge great blimming gaps between them. Someone suggested filling them with silicone sealant. Will that work? He has agreed to a rug for the very middle of the floor but I don't think by itself, that it will make a huge difference - and I fantasise about being able to sit there in the winter evenings without three jumpers and a hot water bottle.