[Cob] Coblist Digest, Vol 9, Issue 50

[Robert Alcock]

Hi Shawn

Thanks for that. I did something very similar, but instead of making 
holes in the lid, I just made a little dent in the rim of the lid (such 
as you might make while opening a tin of paint with a screwdriver.) That 
way the gases could escape easily but there was no problem with air 
getting in and reigniting the fuel once it had gone to char.
see http://www.abrazohouse.org/?p=237

I'm still waiting for someone to design a really functional biochar 
heating/cooking stove!
Good luck with the experiments...

Robert
www.abrazohouse.org


>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 25 Apr 2011 08:16:32 -0700
> From: Shawn King <sbkingster at gmail.com>
> Subject: [Cob] Simple way to make biochar in your Earthen oven,
> 	rumford fireplace, masonry heater, etc.
> To: coblist at deatech.com
> Message-ID: <BANLkTim=QwDswMEhivJWikjDUFiR=sGxJA at mail.gmail.com>
> Content-Type: text/plain; charset=windows-1252
>
> Hi folks, here is a simple way to make biochar, takes 90 seconds to
> put together, no changes to your existing oven or fireplace, see
> http://shoveltech.blogspot.com/ for details!  Happy Earth Day!
>
> Shawn ;)
>
> On Wed, Feb 9, 2011 at 11:37 AM, Shawn King <sbkingster at gmail.com> wrote:
>   
>> Following the recent thread, I felt it was time to try and put something up
>> about my own experiments, as there is obviously lots of interest in making
>> earthen ovens more efficient and/or cleaner burning. ?I love reading about
>> all the tinkering that is going on out there, the cob equivalent of garage
>> startups!
>>
>> My ?rocket door? retrofit is simple, made of earthen materials, will make
>> for cleaner burns, and
>>
>> -> You can add it to any earthen oven without modifying the oven!
>>
>> -> I have been using this with my earthen/cob oven with great results,
>> tested and working!
>>
>> -> You can make it yourself with materials you have around in a few hours
>> spread over several mornings.
>>
>> Only three parts, none of them moving, all made from earthen materials.
>>
>> I created a blog spot with photos and detailed directions,
>> "shoveltech.blogspot.com" for this and other experiments I am working on.
>> ?When it comes to solutions, I am strongly biased towards cheap, simple,
>> local, natural, and fast. Here are the exact addresses for the pages with
>> instructions and photos. ?Enjoy!
>>
>> http://shoveltech.blogspot.com/2011/02/simple-retrofit-to-make-your-earthen.html
>>
>> http://shoveltech.blogspot.com/2011/02/more-rocket-door-images.html
>>
>> http://shoveltech.blogspot.com/2011/02/and-yet-more-rocket-door-images.html
>>
>>
>>
>>
>>
>>     
>
>
>
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> End of Coblist Digest, Vol 9, Issue 50
> **************************************
>
>