I'm planning to get my flat's ancient central heating replaced with a new boiler, radiators, etc. The plumber who came by this evening to look at things and take notes to prepare an estimate reckoned it was best for the new radiators to go close to rooms' doors where possible, not under their windows, as the current radiators generally are.
I'd not heard of this before, I generally expect radiators to be under the windows. Is it more common now for radiators to be located next to doors? Where are yours?