Smeg Oven SC110 Instruction Manual page 16

Instructions for the User
8.2 To save energy
The pizza stone acts as a heat reservoir. This allows energy consumption
to be reduced, especially in cooking operations requiring pre-heating or
medium-long times. In these cases, simply turn the thermostat to zero
10-12 minutes before the end of the cooking time. The heat gradually
emitted by the refractory stone will ensure that the cooking temperature is
maintained.
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