Markku Salmela : Yes much like a
Rocket Stove ! I have made a link to another 'Pontto', this one has a pull-chain Connected to a Lever high up on the
righthand side,
I THINK this is a lever for a bypass to warm the chimney, before it is reverted through all the baffles inside !
Is that your impression too? Heres the link to the picture ::::-->
http//www.kinanen.fi/wordpress/?p=310 Highlite the
Bold part and right click to open in the Address Window, or as a Google Search !
For the good of the cause, BIG AL