Technical Booklet L Combustion Appliances and Fuel Storage Systems·Page 9·71
Discharge of Products of Combustion
Flue-pipes, flues and chimneys connected to combustion appliances must be constructed and installed to discharge combustion products safely to external air without hazard to health.
A combustion appliance shall be so installed and any connected flue-pipe, flue or chimney shall be so constructed and installed as to ensure that the products of combustion are discharged to the external air without causing a hazard to the health of any person.
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