I am at the stage where I am chasing the walls in my house for the electrics. I gave the electrician the booklet I got from my heating crowd (UFH up and down). He has pointed out to me that there is only 5 stats in the whole house. 4 in the bedrooms upstairs and 1 in the hall downstairs, i thought this was abit low so I rang the heating crowd and they basically told me that after research and testing that they found keeping the whole house at a constant temperature was more economical than having some rooms turned off as the heat will always go to the coldest point. Has anyone heard of this before, I thought it would be more economical to shut off rooms that aren't being used??