The tricky thing about underfloor heating is that most of the important work disappears. Once the concrete is poured, nobody can look down and see whether a pipe has been placed badly or a connection needs attention. That is why Radiant Floor Heating Design needs to be sorted out before the concrete crew starts work, not while everyone is rushing to finish the floor. A small mistake at this stage can become a much bigger job later. Moving a pipe before the pour is one thing;