hi all. I have a warm air heated house, we brought it in july and it was already installed. We said we would try it through winter and decide on upgrade or replace with rads. It is ok when on, but a few mins after turning off it cold in house, so looking to get new heating system i think. Can i help out to keep cost down, such as lifting but the floor boards for him, or hanging the rads? Also where will the pipes be run. We have floor boards up stairs, but concreat floor down, but it is a cavity wall, would he put pipes in there or put channel in floor?