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Hi,
I recently purchased a Casa 80 kit and finished building it a few weeks ago. I used four layers of insulation, one layer of lath, one layer of insulating cement (portland + vermiculite), one scratch layer for stucco, and the final stucco layer.
Here is the curing schedule I ended up doing:
- Oct/18: last layer of stucco
- Oct/25: small fire (mostly paper and a few small wood chuncks)
- Nov/3: small fire (two larger pieces of wood)
- Nov/4: three pieces of wood
- Nov/5: 4 pieces of wood (temp reached 500F)
- Nov/6: 6 pieces of wood (temp reach 800F at top of dome)
After the last fire on Nov/6, the soot on the top of the dome cleaned out and I saw that some cracks had developed (see picture). I did the paper clip test suggested by Anthony Rodriguez (Forno Bravo Tech Support) on this forum and confirmed that they are hairline cracks. no worries there.
I am writing because dark stains are developing on the outside of the oven (see picture). I wanted to ask you if you have seen this before, what may be causing them, and whether or not I should be worried.
Additionally, I may have been too aggressive on my curing schedule, what do you recommend I do now. A few more small fires (500F) or is the oven ready for bigger fires?
thank you for your help
I recently purchased a Casa 80 kit and finished building it a few weeks ago. I used four layers of insulation, one layer of lath, one layer of insulating cement (portland + vermiculite), one scratch layer for stucco, and the final stucco layer.
Here is the curing schedule I ended up doing:
- Oct/18: last layer of stucco
- Oct/25: small fire (mostly paper and a few small wood chuncks)
- Nov/3: small fire (two larger pieces of wood)
- Nov/4: three pieces of wood
- Nov/5: 4 pieces of wood (temp reached 500F)
- Nov/6: 6 pieces of wood (temp reach 800F at top of dome)
After the last fire on Nov/6, the soot on the top of the dome cleaned out and I saw that some cracks had developed (see picture). I did the paper clip test suggested by Anthony Rodriguez (Forno Bravo Tech Support) on this forum and confirmed that they are hairline cracks. no worries there.
I am writing because dark stains are developing on the outside of the oven (see picture). I wanted to ask you if you have seen this before, what may be causing them, and whether or not I should be worried.
Additionally, I may have been too aggressive on my curing schedule, what do you recommend I do now. A few more small fires (500F) or is the oven ready for bigger fires?
thank you for your help
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