(57) Gas-fuelled apparatus for cooking food, in particular gas-heated oven, comprising
a combustion chamber, a flue gas outlet conduit and a cooking cavity, blowing means
being arranged so as to be directed towards said combustion chamber, said blowing
means being capable of circulating, in a substantially open circuit made up by said
combustion chamber and said flue gas outlet conduit, a flow of ambient air, wherein,
upon turning on the electric installation of the oven, any possible unburnt fuel gas
is permanently evacuated from said combustion chamber. In a preferred manner, the
chamber housing the burner is provided with at least an opening communicating with
the atmosphere, which is adapted to provide a natural evacuation passage for unburnt
combustible gases. The first ignition to the burner occurs after a pre-determined
time of ventilation, subsequently to the ignition command delivered by an appropriate
control arrangement, and the following ignitions occur immediately after said ignition
command.
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