first attempt-fire chamber in one room , built f

[martinm]

wanted to share where I am in my attempt to build a rocket stove mass heater with 13cm flue size , out of recycled materials and step-by step upgrading it ( modular approach : )
so here are my questions and thoughts in telegraph style :

The fire(combustion) chamber placed in one room, burn tunnel goes through brick wall. Burn tunnel made out of fireclay cast around aluminum flexible pipe. section = 15cm dia.
heat riser - same as burn channel - wonder about adding few porcelain pieces in a spiral pattern on the sides of the base of the heat riser - anyone with such experience ? does it really improve the burning.Do I have to make the heat riser tapered if adding those turbo-fins to allow more space in the lower part for the swirling pattern to take place?

trying fire chamber with a sliding lid to allow for better air intake and wood loading.
lh3.googleusercontent.com/-klNtlQgS8kM/Twb3VwEREvI/AAAAAAAABjM/VYMXq0fVvYc/w359-h269-k/DSCN9959.JPG

The heat accumulation will go into a small bench made out of heavy fire bricks and sand/clay infill. Unfortunately the chimney has an average 15 cm cross section so the pipes after the rocket stove part are 13 cm. so far I have been using an old stove using it as a heat riser with a small fire chamber in front of the lower openning of the stove. so far it was Ok with the restricted 13 cm pipes. It helps the 5 metters stack to the roof.
here some more photos explained :
plus.google.com/u/0/photos/107746249051632795847/albums/5694431262221710657

I will appreciate any suggestions.

Peace and prosperity

Martin M

[Deleted]

Posted by martinm on Today at 4:59am

wonder about adding few porcelain pieces in a spiral pattern on the sides of the base of the heat riser

Some porcelain will not resist the heat, especialy the cheaper ones.
To lower manifacturing costs porcelain slip contains fluxes,
sometimes more than kaolin. Lots of fluxes will form a lot of glass.
The melting point could be lowered to 700°C

does it really improve the burning.

picasaweb.google.com/Jonnygms/StoveInnovationsDec2010#5547816740254069010

[Deleted]

BTW by casting fireclay around a flexible pipe you could easily make the whole thing spiraling.

[martinm]

Jan 25, 2012 4:30:26 GMT -8 @karl said:

BTW by casting fireclay around a flexible pipe you could easily make the whole thing spiraling.

just peeled off the "cast" of aluminum - no cracks so far - let it dry and will assemble the whole thing .

BTW : Just finnished reading a lot of the posts here about adding cycloning/turbulence and experiments done by peterbuild.
good that I spent 5-6 hours reading most of the posts here !
Thank you all !

Peace and prosperity
Martin