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Galatia 12-05-2011 05:54 PM

Ash instead of Vermiculite
 
We use our wood burning stove at home quite a bit, and so now I have a large stockpile of regular ash made from burning wood. I am about to insulate around my dome, and I was going to use vermiculite, however, since I have all this ash I was thinking of using it to save money. Recommended?

Also, is it possible to mix ash with the heat resistant mortar?

Les 12-05-2011 06:31 PM

Re: Ash instead of Vermiculite
 
Vermiculite is pretty cheap. Ash may work, I don't know, but I wouldn't cut corners on the insulation. You are only going to need 2-3 bags.

brickie in oz 12-05-2011 10:11 PM

Re: Ash instead of Vermiculite
 
Throw the ashes on the garden and mix in or on the compost heap.

You need lots of entrapped air to make insulation work properly, ash will compact.


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