very intersting Minda will PM you shortly.
Turks your questions:
What is the floor structure you will be heating?
Hopefully I understand this right, the structure underneath is joists with a void, there a slim chance that some area maybe concrete but not 100% on this till it gets torn up.
What rooms / floors are you heating?
It would be Living Room, Kitchen/Dining Room, Study, Toilet, Hallway
What floor covering will you be using once the UF heating is installed?
Wood of some type all round, bar the Kitchen/Dining area which would be tile or slate.
What is your budget?
Not really set one as yet, open to consideration as I have no clue as to cost and benefits of different options.
Now just to add to this, I have to live here during the work and have two young kids, and so the proper underfloor heating (pipes from current radiator) kinda of scares me, because I am thinking the upheaval would be major plus only working on the ground floor, so it would be a hybrid system don't know what that implies.
The real goal is not that I expect this to heat the house, happy with rads as they are there and is convienant, it more that my floor is pretty cold and the kids hate wearing anything on there feet, so it's really if I could take the edge of the cold floor.
Hope that a bit more info.