I wonder about the claim in the title of this posting made by a well known boiler company when the warranty document, plumbing diagrams, and other printed content are exact copies of our work. So much for the quoted heading on their home page and this from one of their manuals with our work in it: "Often copied but never duplicated". My posting is shameless, but nowhere near as shameless as the plagiarism of our work. When someone asks why our boilers can sometimes cost a little more to purchase, the use of our work by our competition without permission or attribution is just another reason. Feeling Good About Wood, but fatigued by BS in the wood burning industry.