Larger inside diameter

[david s]

No, because the chamber volume is much bigger then the fire can be bigger. The larger volume means a greater fuel consumption, but it should be more efficient, Assuming the wall thickness is the same then heat up may be quicker. You won't be firing it up to only cook two pizzas though. You better have a good supply of free wood.

[Michaelspizza]

Hi,
I was wondering if I chose to build my oven with a 48" inside diameter instead of 42", would I be running afoul of something in regards to thermal mass, i.e., would it take substantially longer to heat?.....would I lose more heat more quickly?, etc. A 48" sphere is about 50% larger in volume than a 42" sphere. Thanks, in advance, for your input.
Michael