The maximum and minimum dimensions of the pots or containers to ensure good combustion and flame stability are a minimum of 22 cm and a maximum of 50 cm in interior diameter.
Yes, the available burner capacities are: 6.90 - 7.70 - 11.40 kW. They can be combined.
The gases and pressures with which the stoves operate are G20 (natural gas) at 20 millibars, G31 (propane gas) at 37 millibars and G31 (propane gas) at 50 millibars.