4" 5" or 6" Pompeii Oven Construction Discuss 4" 5" or 6" in the Pizza Oven Design and Installation forums; How much vermiculite to place under the dome. From memory the plans call for 4",is this enough? Cheers 3G...

[3G_]

How much vermiculite to place under the dome. From memory the plans call for 4",is this enough?
Cheers
3G

[RTflorida]

4" is sufficient, but as we say here....insulate, insulate, insulate. If you can add more without drastically altering your plans, go for it.
That said, I used 4" (per the plans) and have been totally happy with heatup and heat retention.

RT

[Jed]

I'm with RT,

I followed the plans with the 4" and am happy with the results.

We will cook in the oven the following day for sure after a pizza event, and often even the second day with a long slow cook pot of beans or something similar. The oven holds heat just fine with the 4".

JED