We have discovered something that we should have known for years! What works on a sailing yacht works on a boat on inland waterways! The boilers are not always the same, but the way that they work is the same.
In fact inland waterway boats have a big advantage over sailing yachts for solar energy installations - they have tons of usable roof space to put a large number of panels and the environment is fresh water not salt - so much less corrosive.
We have therefore created a new site for inland waterway friends called www.Energy-Afloat.com. If you have inland waterway friends do let them know.