Questar Gas - Good Practices for Gas Piping and Appliance ...

EXCEPTION: Where the passageway is not less than 6 feet
high for its entire length, the passageway shall be not greater
than 50 feet in length.
A level working platform not less than 30 inches in depth and
width shall be provided at the service side of the equipment.
EXCEPTION: A working platform need not be provided when
the equipment can be serviced from the required access opening.
A permanent electrical outlet and lighting fixture controlled by
a switch located at the required passageway opening shall be
provided at or near the equipment.
2. SPECIAL CONDITIONS CREATED BY MECHANICAL
EXHAUSTING OR FIREPLACE: Operation of exhaust fans,
kitchen ventilation systems, clothes dryers, swamp coolers or
fireplaces may create conditions requiring special attention to
avoid unsatisfactory operation of installed gas appliances.
Gas-burning appliances installed in rooms ventilated by exhaust
fans shall be protected against the possibility of the fan pulling
a down draft on the appliance vents. This may be done by the
installation of a permanent fresh air opening(s) to the room
from the outside.
3. INSTALLATION IN GARAGES: Gas designed appliances may
be installed in a garage under the following conditions:
(a) Appliances installed in garages where they may be
subjected to mechanical damage, shall be suitably guarded
against such damage by being installed behind protective
barriers or by being elevated or located out of the normal
path of vehicles.
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