Re: Juntos stove - refined somewhat

[Carefreeland@aol.com]

In a message dated 1/30/02 6:21:45 PM Eastern Standard Time, dstill@epud.net writes:
> Dan's comments in text

> Dear Paul,
>
> I'm glad that we're starting to send small pictures, worth a thousand words
> sometimes and does not clog up my not terribly fast system.
>
> I've often wondered, especially since you started in this direction, whether
> starting a fire above a fire in a chimney would benefit both fires so that
> the result was overall cleaner combustion. Can you determine if this is so?


> >Dean and Paul, I couldn't make out all of the details of this stove, but it looks very intresting.  Paul, If you are in Illinois, I can come see you some slow day and take a look at this.  How far are are you from Indianapolis?     
>  >   Dean, My greenhouse(GH) stove #1 works on this exact principal, it has an afterburner based on a controlled chimney fire, and works great with somewhat wet wood once it is hot.  Howls like the afterburners on the B-52's flying overhead.  I love burning pine and spruce on an oak or hickory charcoal base when the greenhouse really needs heat. The tar accumulated in the pipe at night burns out the next day. 


> Does the upper fire clean up escaping smoke from the lower?
    

>On my GH stove? absolutely- like a charm.

> Does preheated
> hopefully swirling air help the upper fire to burn cleaner?

>see above comment.

 Is there greater
> draft because of the upper fire that assists better burning in the lower
> fire?

>Unbelivable effect ! especially with an expanding chimney at the point of emergence of flame from afterburner to chimney pipe.  I go from 6" well casing to an 8" stove pipe. Also have an accidental air leak here that finishes the burn abruptly. 

 Are exit temperatures above 1200F? Etc.

  > Never measured here, but I have a galvanized heating duct pipe for a temporary stove pipe and it has lost some zink, and I've seen it glow a little. 
> Thanks for doing this interesting experiment!


> >  Started this construction of my stove as a small experiment, I was just cleaning up my wood smoke, and enhancing the draft on my stove to raise the efficiancy. I extract heat for my greenhouse from this afterburner through a corrigated iron sheet that reduces the backflow of heat when the stove burns out late at night. 


       >  The first time I added a firebrick to the entrance to divert the air, and preheat it a
> little, I burned out the wrought iron brick retainer. That's when I knew I was on to something special. 


> Yes, the top part of your stove is a Rocket. But we certainly have no
> trouble with anyone using Rocket ideas...That's what we're trying to spread
> around!

> I'm only spreading this info around intended for those who share theirs with me.  If this makes you feel guilty, QUIT LURKING and share what YOU know. 
> I have an old recirculating flow coal/wood burner attached to this afterburner.  The extra brick makes the air swirl in from the front in two wide jets, exiting the back of the stove. It resembles, and somewhat acts like an open hearth furnace, reaching apparent temps of F2500+ degrees.  I have smelted iron ore nuggets into a bloom with this devise,(for demonstration, not practicality) and Tom R.@BEF has the evidence.
 >      During the day I cook down a load of trash wood with wide open air, kicking in the bleeding secondary air, causing afterburn, and charcoal accumulation as I cut primary air back some.
   >     At night I put in hardwood like oak, and let it slow heat on the charcoal bed. The burning oak wood helps afterburn the mix in the stove on low heat, but I'm not always impressed with the turn down efficiancy unless the oak is very dry.  
 >      I have 2 air tubes through the top of the stove, attached to an old cooler fan, that suck hot air into the greenhouse, presurizing the GH with warm air.  This is good to eliminate drafts from many air leaks. 
 >       When It is cold, I kick in stove #2 which exits the air from the green house through a potbellied type stove under light pressure. This pressure eliminates blow back of smoke into the greenhouse when starting, when draft is low from a cold chimney. Also enhances the inflow through the #1 stove when exhaust exit is a hot draft. 
> This stove system is constantly changing and evolving, I would like to someday patent devises based on design principals learned here.  What I have described is some semi-public snapshots of this continuing experiment.  As long as no one reproduces this entire exact design, I have no problem with anyone learning from it. 
 > Iron ore bloomed in 3/2001.  I reached the design point described here as of about 12/ 2000 with addition of second stove.   Afterburner and heat exchanger constructed and improved from 12/98- 3/99. All dates are estimates. 
 > Thanks Dean and Paul, for allowing me to borrow your string to "hide" this poor inventor's records smack dab in the middle of public domain.  Directed for use by those of us stovers that are truly "JUNTOS"(together) and "KRIJANI"(friends)
 > I request politely that this letter not be reproduced more than necessary.  I will however, address some questions about the "Dan's GH stove" under the "juntos" string name to my attention. 
> Look for pictures someday on my  carefreelandscape. com  website currently under construction, I promise.  Archive this letter to describe pictures. 
                                             Daniel J Dimiduk 
                              Shangri- La Research and Development Co. 
                                      Ohio Charcoal and Iron project
> Best,
>
> Dean