[Stoves] 4 pictures for you

[Crispin Pemberton-Pigott]

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: stoves-bounces at lists.bioenergylists.org
[mailto:stoves-bounces at lists.bioenergylists.org] 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
dickgallien at gmail.com  [507]454-3126
www.thefarm.winona-mn.us

On Mon, Dec 27, 2010 at 9:23 AM, Crispin Pemberton-Pigott
<crispinpigott at gmail.com> 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

 


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