I've got a large conservatory extension to my kitchen which was installed by the previous owner. It's absolutely freezing in winter (gets to 10 degrees with the heating on!), so we try to spend as little time in there as possible in the colder months (which is a pain because that is where we eat!). We'll probably only stay living in this house for another 2-5 years and Dh says it's a waste of money as we'll never recoup the cost of installation. He also thinks it will alert buyers to the fact that it's bloody cold in winter. Thing is, he moans when I use electric radiators to heat the room, but I can't stand being cold. We haven't much money and it would be a huge investment, but do you think it's one that is worth making? Purely in terms of comfort and enjoyment, I think it is, but would a buyer pay more for a large kitchen/diner with a woodburner?