John, the winters aren't usually terrible around here but it does get pretty cold at times with the wind chill factor. Because it is high dessert, the temps can plumment at night during the winters. I recall hearing about temps of 12 below this past winter.
I have also been up in Saskatchewan in the dead of winter, and Albuquerque doesn't get quite that cold.
John thanks for the compliment of my latest pizza efforts and for posting your heat up times. I know each oven is different but I'm always curious to know none the less. Looking forward to seeing the pics of the new mobile. I'm also curious to know how the heat up times in the mobile compare to that of your Earthstone oven.
No new cracks. Hurray! There are 4 dome pieces plus 1 dome cap. Each piece has a crack in it. Some twice the length of the others. A few are barely visible and can only be seen when the oven is HOT. After it cools, only a couple are barely noticeable.
Earthstone probably has a superior refractory mix compared to Forno Bravo, who is fairly new at it. Both your oven and Bill's cement looks strong and durable.
Also I keep forgetting to mention that the last 2 bakes, I have been putting the door on several hours after the bake with red coals going. In the morning, there are still live coals in the oven and the temp is above 600F.