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Wood Burning Brick Oven - Chamber Insulation

One of the most challenging parts of the wood burning pizza oven construction project was the design
and application of the insulation layer.  This part of the project required a major redesign to obtain the final results.

All materials including the vermiculite used for insulation were found locally.  

wood burning oven vermiculite insulation form

vermiculiteinsulation curing wood burning brick oven

vermiculite insulation failure wood burning brick oven

vermiculite insulation re-design wood burning oven

vermiculite insulation solution wood burning oven


Lessons Learned:  A change I would make...   I will eliminate the fiberglass blankets from the next oven I build.  After reading much on the subject after I built the oven, I am betting that the glue that binds the fiberglass threads together has been melted by oven heat that all that remains is an air gap under the top render - stucco surface.  Now an air gap is also not a bad insulator, but not as good as I had planned.  I would recommend using additional vermiculite or other high temp batting - insulation material.

wood burning oven final insulation layer

 

render stucco exterior wood burning brick oven

exterior weather surface (render / stucco) wood burning oven

 

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