Setup at our shop. The pipe is fixed to its strongback to keep it from deforming under heat. Testing showed that wrapping the pipe with rags is not necessary. Nor is it a must to pre-soak the wood. Perhaps so in hard bend situations, which ours is not. Saves us a ton of problems, otherwise we would have had to build a 5 m long bath for our planks. Using the tube as a soaker would have meant extra time spent.