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Re: Exterior Dome Finish
Coal ash is what is left over after coal is burned in power plants to generate electricity. It is available for free where I live in Tasmania where as vermiculite is about $47 Aus. per bag. Coal ash is used by Rado of Wood pizza oven Building wood burning brick bread ovens in place of vermiculite and perlite and is mixed at the same rate as vermiculite ie 13 coal ash, 1 cement and 1 lime. I intend using this between wall and oven with ceramic blanket on top of oven and would like to know if it would have any effect on the blanket if put the coal ash, cement, lime mix on top of the ceramic blanket as I have heard that the blanket should not be squashed down.
Thanks for comments so far, Paul
Coal ash is what is left over after coal is burned in power plants to generate electricity. It is available for free where I live in Tasmania where as vermiculite is about $47 Aus. per bag. Coal ash is used by Rado of Wood pizza oven Building wood burning brick bread ovens in place of vermiculite and perlite and is mixed at the same rate as vermiculite ie 13 coal ash, 1 cement and 1 lime. I intend using this between wall and oven with ceramic blanket on top of oven and would like to know if it would have any effect on the blanket if put the coal ash, cement, lime mix on top of the ceramic blanket as I have heard that the blanket should not be squashed down.
Thanks for comments so far, Paul
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