Lots of buildings in this country are heated with in floor heating. It is a great way to heat a building.Lots of car garages and machine shops are heated in this manner, and it works very well. Hot water is pumped through the plactic pipe lines under the floor. Some people pump cold water through their lines in the summer to help cool down the building. A neighbor of mine has a wash rack and calving barn heated with this in- floor heating, and it is wonderful. If you wanted to, I'm sure you could walk around this building in your sock feet on a vert cold winter day and be very warm.