Martijn Stokkers : A very good question ! But first a little paperwork ! At the top of this page and to the right of the spinning Permies Sun is the Permies Toolbox.
If you Clickon 'Search' -it will take you to the Permies Search Engine- where you can enter Sterling Engines, and then below select a search within the
Energy Forums
specifically within Rocket Stoves/Mass Heaters, make sure you are doing your search within Permies, and not the WWW, and hit 'Search', You should get about
500 hits !
Also every time you Start a New
Thread, our computer looks for Key words and then posts 'Similar Threads' for you to look at and click on at the bottom of the page!
Membership has it's privileges, this is available you as a Fellow Member 24/7 ! I have a little research to do and will follow up with a second post ! Big AL