Here are my cracks at 3rd fire 400 degrees

[DrakeRemoray]

Nice looking oven! Great brick work! Don't worry about those cracks, but I do like dmun's suggestion if the crack in the front bothers you for aesthetic reasons.

[stonylake]

I insulated my dome and started to stucco before i got my oven that hot. I faced my arch with terra cotta roof tile that I cut, and 2 of the mortar joints have cracks.. oh well. Had a big fire last nite and most of the brick cleared up, first pizzas tomorrow!

[pzachef]

I didn't insulate yet because I thought it was to be done after curing? Have I done wrong?

[pzachef]

Before I start my 500 degree fire, I wanted to share the cooled down photo's after last night fire and cracking. It appears to have shrunck back down to a fine line crack, see these new photos as compared to the ones I posted in the beginning of this thread.

[stonylake]

I had several fires in my oven while i was insulating and doing stucco... started with a trouble light with a 100 watt bulb, did sterno twice, and various sizes of fires. i have a crack about a third of the way around (135 degrees of the circle). i need to get a thermometer, i had the mother of all fires saturday, cooked pizza for the first time... the oven was too hot.. 90 second pies. i wish that i had built my arch/vent a little higher like you did... i get a bit more smoke than i want, but maybe i can fix part if that with more chimney.

[pzachef]

I'm actually about to do my 800 degree curing fire tonight. This crack has developed from the front of my outer arch right straight back through to about half way down the back of the dome. It opens up enough for some smoke to come out which I saw during my 700 degree fire last night. I am destined to fix them all it seems before I can build my enclosure. I'll be posting another thread to see what the latest fixing techniques are.

I don't know how to close this thread.....I'm on to "tips and tricks, & techniques" for fixing discussions.