Thanks Siggy for this great and thorough course on modern hydronic heating. Hopefully distributors will start to stock some of these components and we can heat the 21st century.
If you want to learn and interact with the expert "who wrote the book" on hydronic heating, this is a convenient way to do it!
I loved the ability to do the course when I had the time to do it, I also liked all the diagrams and illustrations. Great course!