A friend of mine has inherited his parents' house. The living room has effectively been widened by an extension in the form of a conservatory. The problem with this is that heating up the living room is difficult due to the size of the combination of the living room and the conservatory and also because the latter loses heat much more readily. The transition between the two is about 5 m wide.
To solve the heat loss problem, my suggestion was to partition the gap and have access via sliding doors. Were the gap to be divided into quarters, the left and right ends (equalling a quarter of the width each) could be fixed with a pair of sliding doors dividing up the central half.
How doable would that be? I'm prepared to help but have never made anything bigger than a book case. My idea for a design would be to have the petition / doors made with wooden frames, the lower third i.e. up to about waist height also of wood and the upper two thirds being of panels of double glazing - assuming such things are available. That way the insulation level would be improved but light would also come in from the conservatory on cold days.
There's also the possibility of having heavy drapes to further boost insulation at night.
Does all this sound plausible? Any other suggestions?