Arizona republican., 1918-12-17
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poses only, shall be deemed to be three
(3) burners.
For each outlet in the ceilings of bed
rooms, bathrooms, toilet rooms, public
halls, pantries, porches, or bracket
lights, where it is intended that these
outlets are to supply gas for illumin-
ating purposes only, allow one OD
burner.
To determine the number of burners
for heating purposes allow three (3)
burners for each gas crate, gas log or
gas heating stove or appliance, COM
bination boiler and water heater or
nom automatic gas water heater out
let; ten Q0) burners for each outlet
for a cook stove or so-called hot plate.
To determine the number of burners
for automatic or automatic thermal
gas water heaters, allow:
burners for each u in. outlet
IS burners for each y in. outlet.
40 burners for each l in. outlet.
80 burners for each IL in outlet.
ESQ burners for each 11a in outlet.
500 burners for each 2 in. outlet.
The diameter Of the supply pipe to
every such automatic or automatic
thermal gas water heater, shall not
be reduced in size from the meter to
the inlet for the heater.
No such heater shall be connected
to any gas pipe outlet smaller in
diameter than the diameter of the inlet
pipe on the heater.
All horizontal pipe shall be at least
one half Cd inch in diameter, except
that in exposed work, three eighths
($D inch horizontal pipe for a single
light may be run distance not exceed
ing twenty GOD feet
In concealed work, where practical
all center outlets or drops shall be
bent in preference to drop pipes, with
| straps soldered thereto. No center light
! or drop shall be of a smaller diameter
than one-half (1.) inch. Bracket, fire
! place and stove outlets shall be bent
and have an offset or be provided with
bracket elbows to prevent removal
Gas CRATE and fire place outlets must
be at least two (2) inches clear of the
finish and bottom of fire basket. No
pipe smaller than three quarters *
inch shall be run for cooking stoves
hot plates and instantaneous heaters
Drop pipes for center and bracket out
lets shall not project through the fin
ish or ceiling. wall or partition lines
more than one % inch.
All gas. pipes shall be well secured
to the building and shall grade. or in
cline toward the meter, and wherevei
| necessary, shall be provided with driI
pipes so as to prevent any traps OF
depression where condensation would
remain.
All pipe shall be laid, when practical
above joists or beams instead of be-
meath them When running lines OF
branches across beams or joists, they
must do so within So inches of the enc
Of beams, and in no case shall the SAID
pipes be let into the beams more thar
inches in depth.
No gas piping shall be placed with
in inches OF any electric wire which
is not protected by conduit, porcelain
tubes. flexible loom, insulating ju.nt.
or other approved methods. Wher
electric wiring must be moved, altered
or protected for installation Of "a.
piping such moving, altering or pro
tecting must be done only by a bonded
electrician.
Wherever drip pipes are used, tn,
end of such drip pipe must be ex
posed and so arranged to be easy o
access.
Gas piping shall not be filled will
water for the detection of leaks, no
shall gas-fitters' cement, sealing wax
or any similar composition be use,
for the stopping of leaks.
No union joints shall be used f.
concealed places All union joints shal
be ground joints without gaskets.
SECTION G.
Fixtures
A Hose Connection Prohibited.
No hose connection shall be used 70
cinducting gas, and in place Of hos
connections in existing buildings rigi
gas piping shall be installed, except i
the following cases:
% Portable open flame room heat
ers may have flexible hose connection
not over feet in length to hose coo
on service pipe.
, 90 The City Inspector of Building
: may issue a special permit for the US
! of flexible connections in other cas-
;, when in his judgment such connection
, will not constitute an udue hazard.
!. B. vents.
: ID Every gas appliance which
provided with a vent outlet from tn
combustion chamber, shall be CAREFUL
extend to the outer air.
co When it is impracticable, on ac
S count of the structural features in
:, building, to run such vent pipe to an
q through the roof of the building, the
f such vent pipe at the discretion
r the City Inspector of Buildings ma
o run to tie exterior wall and run up
e least four feet on the outside of sue
e wall
S Every such vent pipe shall have q
= internal area equal to the internal are
= of the vent pipe outlet on such heate
g For each additional vent pipe connectt
e to the main vent pipe, the area
il the main vent pipe shall be increase
: fifty 600 per cent of the area of Il
additional vent pipe or pipes connectt
II thereto.
e Every such vent pipe shall be col
e structed either of:
II ID Brick, in accordance with Il
provisions of the Building Ordinan
IL for smoke flues; or
n (2) Galvanized iron coated on Il
" interior with a preservative approv
: by the City Inspector of Building
" Every such vent pipe to have all Join
l. soldered and to be constructed and il
- stalled in such a manner as to preve
= all leakage of gas or fumes. Said We
" to be enclosed with galvanized ir,
Or sleeve extending the full length
er the concealed portion of such vent pi
s. and SO constructed with metal space
N that there shall be a clear air spa
of not less than one-quarter (ll) in
to all around and between such vent pi
OF and sleeve, and the exterior surface
Or every such sleeve shall be covered wi