To answer this question more information is needed. I have to know what the load of the ovens are and the FLA (full load amps) of the compressors that run the cold rooms. Then using the code book do a calculation to find the loading factors. This almost sounds like a contractors code question.
The best home pizza ovens are generally part of microwave/oven multi-functionals. This is because they take up less space and cook quickly.
Commercial pizza ovens may be useful for a variety of other items, but for home ovens the options are limited, since the shape of the oven tends to very wide but also very short. Foccacia or other flatbreads might be a possibility in such a space.
No they can not operate in outer space.
A wall oven is a free standing stove. Wall ovens are usually used in pizza restaurants for cooking pizza. Under the bench ovens, are ovens that are built to fit under a counter or under the burners on the rest of a stove.
Pizza-hut!
No, a double wall oven takes up more places that normal single wall ovens space efficient in the kitchen. This is why you should get bid huge kitchen for oven.
How have engineers designed spacecraft to operate in the special conditions of space
Then we would go into space to eat it, of course.
pizza
A space ship shuttle.
Um. . . No. There is not an exploding pizza in space. That would only happen if someone invented one, which wouldn't really happen. Sorry. :)
Astronauts.