Hong Kong Regulations

GAS SAFETY (INSTALLATION AND USE) REGULATIONS - REGULATION 24

Flues

(1) No person shall install a gas appliance to a flue unless the flue is so
constructed and in such a condition that such appliance can operate safely
with it.

(2) No person shall install a flue pipe so that it enters a brick or masonry
chimney in such a way that the seal between such pipe and chimney cannot be
inspected.

(3) No person shall connect a gas appliance to a flue which is surrounded by
an enclosure unless the enclosure is so sealed that any spillage of products
of combustion cannot pass from the enclosure to any room or internal space
other than the room or internal space in which such appliance is installed.

(4) No person shall install a power-operated fan for a flue unless means are
provided to safely prevent the operation of the gas appliance for which the
flue is provided if such fan fails. (Enacted 1990)