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Gas Fired Biscuit Oven
The products of combustion are recalculated through 102mm.
diameter tubes above and below the band. The gases in the
radiator tubes are negative pressure to ensure that the products
of combustion cannot contaminate the goods in the event of
leakage. This system gives maximum economy and temperature
stability as only a proportion of gases is exhausted to atmosphere,
the remainder to the combustion for re-heating.
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