The 4 tubes are only a few inches from the bottom of the stove, so ashes sometimes cover them. The galvanized cover I put over the air intake holes, keeps chaff from falling in, warms the incoming air more, but along with the 90 degree angle in the 4 pipes, makes it more difficult to be sure they are clean.
I can see where funneling/focusing slower burns, coming under the baffle,, would make Sedore more efficient. Suppose it would need a bypass door, to open, when fueling. The 30' X 10' dia. 1" thick rr tank car, shown last, in the biochar video, is still waiting for a cheap, efficient plan, for top loading brush, to produce heat, biochar and possibly energy. Any TLUD ideas that might fit? Thanks, Dick Biochar Production <http://www.thefarm.winona-mn.us/biochar.html> Dick Gallien 22501 East Burns Valley Road Winona MN 55987 [email protected] [507]454-3126 www.thefarm.winona-mn.us I On Mon, Dec 27, 2010 at 11:29 AM, Crispin Pemberton-Pigott < [email protected]> wrote: > Thanks Dick for the explanation. > > > > As before, I note that because there is such a large open space inside the > back of the stove. I say ‘open’ because when the fire is small, it is as > good as a partially heated open space. > > > > It is, from your description, going to be a very clean burning stove once > it is hot and running at high power. The heat and flames will be filling in > the space at the back. When the fire is smaller, smoke and CO can get around > the flames at the edges. That is what I was referring to when I say it needs > a combustion chamber. > > > > Two stove list members, Paul Anderson and John Davies, are using a conical > region immediately away from, above, next to, the fire+fuel to give the > flames a chance to meet the smoke and burn it. The modified traditional > Mongolian stove has instead a pipe which accomplishes the same thing. It > would be interesting to know what happens of some sort of conical burning > chamber were inserted immediately after the fingers that separate the fuel > from the flames. > > > > I am surprised your primary air supply tubes can get clogged. With what? > > > > Regards > > Crispin > > > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Dick Gallien > *Sent:* 27 December 2010 12:15 > *To:* Discussion of biomass cooking stoves > *Subject:* Re: [Stoves] 4 pictures for you > > > > Hi Crispin, > > > > It would be a cross draft, with the preheated primary air coming down > through the 4, approximately 1" pipes, that enter a few inches from the > base. The pipes have a right angle and I mentioned to Bruce Wolfe, who was > just starting USA Sedore, that the 4 pipes would be easier to clean, if the > right angle was eliminated. He agreed and said it would also be cheaper, > so may have changed that. My 4 pipes must be partly or completely plugged, > in that it is always run wide open and we usually have a nail or large bolt > holding the feed door partly open, making it a down draft. It has an 18' > straight stack, with insulated stainless on the outside, so draws well. > > > > There is no grate, just a few fingers protruding half way down, into the > approx. 3+" gap across the width of the floor of the firebox. It couldn't > be much simpler or efficient, yet all my long gone farmer neighbors, heated > with the most in efficient wood stoves and furnaces, often with large, > uninsulated homes. > > Dick > > > > Dick Gallien > 22501 East Burns Valley Road > Winona MN 55987 > [email protected] [507]454-3126 > www.thefarm.winona-mn.us > > On Mon, Dec 27, 2010 at 9:23 AM, Crispin Pemberton-Pigott < > [email protected]> wrote: > > Dear Dick > > > > That is a really big throat! Wow. That was one huge chunk of wood it > swallowed! > > > > As far as I can tell from you description it is a downdraft stove. Is that > correct? Is there a grate with the flame coming through the bottom, or an > opening at the back with the flame going sideways out the back? In that case > it is a Crossdraft stove with the primary air coming in from the front and > passing through the fuel to the back. > > > > Perhaps you can comment. > > > > Much appreciated the video… > > Crispin > > > > >>>> > > > > This is the 4th or 5th winter I've had this Sedore. The creosote is from > the green chips and having the stack sections in backwards. I've never had > to clean the chimney. Any stack creosote falls directly into the inferno. > Have heated only with wood, for over 50 years. Dick > > > > http://www.youtube.com/watch?v=rb83h6kts7o > > > > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > Stoves mailing list > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org > > for more Biomass Cooking Stoves, News and Information see our web site: > http://www.bioenergylists.org/ > [email protected] > > http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org > > > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > Stoves mailing list > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org > > for more Biomass Cooking Stoves, News and Information see our web site: > http://www.bioenergylists.org/ > [email protected] > > http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org > >
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