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Woodstove development using rocketstove technology
 
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DarrenForest



Posts : 14
Join date : 2013-12-31

PostSubject: Hello everyone   Wed Jan 01, 2014 4:49 am

I've lived with various wood stoves for years.
A couple of years ago I built a gasifying woodstove which is top lit, which reduces smoke on lighting.  It has an airtight hopper that is above the grate.  Wood is fed onto the grate and into the airflow where it burns.  The wood in the hopper wont burn as there is no airflow (oxygen) in this part of the stove.

https://mediacru.sh/6e4880b8f5c3


I'm just about to make a bioochar producing rocket stove based upon the designs of Ed Revill.  The design of the Forest Rocket Stove is open source - licenced as a Creative Commons CC-BY-SA licence

www.appropedia.org/Forest_biochar_rocket_stove

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Guest
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PostSubject: Re: Hello everyone   Wed Jan 01, 2014 4:54 am

Welcome to the Forum.  Very Happy 
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brad j



Posts : 13
Join date : 2013-12-31

PostSubject: Re: Hello everyone   Wed Jan 01, 2014 10:38 am

welcome, I'm new here too. Do you have any pics of that gasifier? I have never seen anything like that.
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DarrenForest



Posts : 14
Join date : 2013-12-31

PostSubject: Re: Hello everyone   Wed Jan 01, 2014 10:46 am

I cant post clickable links for 7 days apparently.
The link below has to be copied into you address bar or maybe someone else can make a clickable link here???

https://mediacru.sh/6e4880b8f5c3

mediacru.sh/6e4880b8f5c3
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DarrenForest



Posts : 14
Join date : 2013-12-31

PostSubject: Re: Hello everyone   Wed Jan 01, 2014 10:52 am

To further clarify the stove has a glass door at the top of the burn tube. I stack wood in this side then twigs, then card, then shredded paper on top.
I light it on top and get little smoke from the stove as all the gasses given off from the fuel have to pass through the flames / embers where they are heated and combust more fully.

There is no fire underneath fuel - this is why fires smoke a lot when lit, fuel stacked up with paper underneath which is lit. Easier to light but creates lots of smoke.
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DarrenForest



Posts : 14
Join date : 2013-12-31

PostSubject: Re: Hello everyone   Wed Jan 01, 2014 11:04 am

A problem with this stove is the fuel has to be prepared carefully so that it feeds freely in the hopper. A different design of hopper, without a sloping side could overcome this.

Effectively Ppotty1s firebox is like a big wide hopper - the fact that the air flows in at the top means that potentially all fuel can set on fire.

I wonder about having a much taller box with air in at the bottom and move the glass down low ( because the part of the box above the airflow will fill with smoke and dirty the glass quick ) with the air flowing past it to keep it clean. Could set it up to allow you to see right down the feed tube
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brad j



Posts : 13
Join date : 2013-12-31

PostSubject: Re: Hello everyone   Wed Jan 01, 2014 12:19 pm

I like it, looks somewhat evil in the pic. How long is the burn fully loaded? From what I can tell it looks like a rocket burn.
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ppotty1 Admin
Admin


Posts : 239
Join date : 2013-09-30

PostSubject: Re: Hello everyone   Thu Jan 02, 2014 12:39 pm

Welcome to the forum Darren, looking forward to your builds.
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