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Castable core recipes?

 
Posts: 5
Location: Transylvania
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I am still here and still doing my home works before to start any project.I find this recipe 5 part clay,5parts organic matter,1 part potash water,1 part sugary syrup and half part straw.Please let me know your opinion if this mix could be good for core and heat riser.Stuff like perlite and vermiculite is expensive where I live so I must find some poor man solutions to build my rocket heater.
Here is the link with the recipe http://www.rechoroket.com/%22How_to%22_Albums/Pages/Clay_mixture.html
 
pollinator
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Location: Northern New York Zone4-5 the OUTER 'RONDACs percip 36''
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A.C. : This is a system to create a crude "Rocket Stove'', (a cooking stove,and best used out doors ) this is not any kind of a Rocket Mass Heater R.M.H., and can not be made
into one.

The use of sugar here will greatly slow the rate at which the Mud Stove can dry, I would personally put this whole project in the Dooms-day , Prepper, Zombie Hunter class of
potentially nice skills to have after the Apocalypse,

Are you willing to make a heat riser out of clay slip and sawdust with the expectation that you will have to replace it yearly ?

With over 100,000 Rocket Mass Heaters made world wide, almost all of them, and over 95% of the First Builds that Worked - were made from Ianto Evans' Great Book -
"Rocket Mass Heaters", I strongly recommend going to rocketstoves.com, to get your PDF Copy, $15.oo USD, there is STILL No other book in any Language with as
much Rocket Stove, Pocket Rocket, Mass Heater Family Information! ( And I dont make a dime !)

The best use of the miss-information that you have been subjected to can be found by going to www.traditionaloven.com and searching its topics,Time spent with a local
potter will definitely be worth your time, you may gain a convert / helper, and getting someone who knows where to get local clay that needs little handling is always a
big plus !

Think like fire, flow like a gas, Don't be the Marshmallow ! As always, your comments /and questions are solicited and Welcome ! PYRO - Logically BIG AL,

P.S. The use of Grog as explained in Traditional Ovens or by a local potter will make your materials stronger, with only slight cost in insulative value ! A. L.
 
Adrian Cuibus
Posts: 5
Location: Transylvania
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I try hard not to be a marshmallow..LOL
So ,first the Ianto's book and than I'll be back.
Thank you Allen for your advice.
 
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I have a friend that is a potter can't I just go there make a core shape glaze it and throw it in to the kiln and use my finished piece of pottery as my core? Or will it not be able to handle the daily heating and cooling that would happen if I used a RMH? If that is no good what all questions should I ask him? sources of clay what the kiln is made of etc?
 
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Yes it is possible to heat and cool it daily but it will be very problematic for you only.
 
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