I'm no electrics expert, but from my reading on the pizza forums the issue is that US voltage requires extra electrical work. A genuine pizza oven for Neapolitan style pizza must reach around 950f+. My one takes 1 hrs 30 min to reach cooking temperature. It's a more complex topic than you'd think but the only ones avaiable are catering units. There is one exception and the G3 Ferrari Pizza ovens are a bit of a compromise and take a lot of learning to use and there is a whole sub-culture of people adapting them. The main issue is that it only has one heating element. It does however cook excellent pizza once you have persevered and mastered them.

http://www.g3ferrari.net/en/prodotti.php?mcat=1

I have a model that was withdrawn because the higher temperatures breached some eu laws and it couldn't technically be legally sold. I replaced it with my chap above. You can buy these online. Some people are importing my new oven successfully from Italy. My one came from Rimini.

I suggest you have a read through ..

http://www.pizzamaking.com/forum/ind...oard,47.0.html

.... you'll see me plodding along there with other pizza nerds ...