I don't mind
With only one heating element the optimal temperature is +/- 720°F beyond that, the bottom burn easily as you may have noticed
I start by putting a flattened aluminum pie on the refractory stone (prevent overheating) put the thermostat on 3 and then preheat 15min, then I remove the aluminum and I quickly put the pie in.
A good wooden pizza shovel is a Must have, you want to keep the hot air inside.
If you have the Deni with the two handles on the refractory stone, remove one like this
to turn the pie without opening the oven at half baking.
of my oven with only one heating element, I was monitoring the air temperature inside the dome (in Celsius)