It seems like it may be an overly expensive proposition to cut out holes in the floor and subfloor for the convector boxes in front of all 5 windows and doors in the LR. But the reason why I want them is that I am still dreaming of having 5 dbl. patio doors leading directly to the outdoor space.
So here are the options:
1. All openable doors => convector boxes in floor -
for aesthetic reasons all 5 openings should have the grills
