Hi Crispin, ¿what is the diameter of the combustion chamber? ¿It is a conical chamber? Greetings. Roberto Poehlmann -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20150105/d8292943/attachment.html>