The Saint Paul globe. (St. Paul, Minn.) 1896-1905, 1901-08-30

ing houses, having a sectional area
gre than two hundred and sixty
square inches, but less than i've hundred
square inches, shall be surrounded with
walls not less than eight inches in thick
ness, and shall comply in all respects
70 the requirements of this Code relat-
ing to flues in brick walls
brick smoke fiues. chimneVs or stacks
n&Nlng Il sectional area greater than I'VE
hundred square inches shall have hollow
walls in which the combined thickness
OF the inclosing walls shall be at least
twelve inches. ard the air space between
the inner and outer walls shall not be
less than two inches.
For distance of two feet below the
smoke outlet and at least ten feet above
1t, such fiUe, chimney or stack shall be
lined with fire bricks laid in fire clay
mortar, together with the opening for
smoke pipe.
The tops of all smoke fiues, chfmreys
or stacks which may hereafter be erected
exceeding a sectional area of one hun
dred and seventy square inches, except
Tor dwelling houses, shall extend to a
height of not less than twelve fee.
above the roof of the building.
Where there are other buildings with
IN Z radius of fifty feet any smoke f1ue
winch exceeds five hundred square
inches in area shall be carried to a
height sufficient to protect such build
lngS from smoke and gases, or suitable
and approved smoke consuming devices
pay be used to serve the same pur-
poses.
Sec. 80. Metallic Chimneys-
Smoke stacks or chimneys built of iron
or steel shall be thoroughly anchored or
guyed but shall not pass through the
uoors Of building unless protected by
IRE proof walls entirely enclosing the
stack or chimney. Where smoke stacks
or chimneys of iron or steel pass through
the roofs of boiler houses the roof shall
be protected with a metal Jacket
Metallic chimneys or smoke pipes shall
not be used inside of any building in such
manner as to pass through the floors or
roots OF the same unless properly pro-
tected.
See. II. Metallic Smoke FIues-
Where metallic smoke pipes of a di-
mension Of twelve inches or less pass
through wood or plaStered stud partl-
ton they shall be surrounded, either by
body of brick, hollow tile, or porous
Jerra-cotta or other incombuStible sub
stance measuring at least four inches all
around such smoke pipes. Or they shall
be surrounded by a sheet metal thimble
made OF two concentric rings at least
Two inches apart and the entire thimble
SO constructed that there will be a free
circulation Of air between the two rings
forming The same.
Metallic smoke flues of less diameter
than twelve inches, placed horizontally,
shall be kept at least twelve inches dis
tant from any woodwork, and immedi-
ately over and for a distance of one foot
on each side Of such smoke pipe the
covered t sheet
metal porous terra-cOtta, hollow tile or
plaster.
Metallic smoke pipes of greater diameter
than twelve inches and less area than six
square feet must be kept at least sixteen
inches away from any woodwork, and
such woodwork must be protected as be-
fore specified for the smaller smoke
pipes, to distance Of three feet on each
side Of such smoke pipe.
Whenever metallic smoke pipes Of larg-
er area than six square feet are used,
they shall be kept at least two feet dis
tant from any woodwork and such wood
work for a distance of at least four feet
on each side of such smoke pipe shall be
protected as before specified for smaller
pipes.
Sec. IS. Isolated Smoke Stacks
Isolated smoke stacks for steam boil
ers, smelling furnaces, and all others
used for similar purposes, shall havo
foundations of brick, concrete or stone,
al above the foundation shall be built of
brick, stone, terra Gotta, iron or steel
All foundations shall start from solid
ground, and if not on solid rock, shall
not be less than five feet deep and built
up solid to at least one foot above the
ground, of either Portland cement, Con-
crete brick, or dimension stone. All brick
or stone for foundations shall be laid in
cement mortar; one part of cement and
three parts of sand.
The foundation shall be six inches more
IN width on each side for every foot In
depth. The load on foundations, except
on solid rock, shall not exceed two tons
per square foot. All chimneys, where the
Hues are heated to high temperature,
shall be built of double walls of suitable
thickness for the temperature, with an
air space between the walls. These walls
must be bonded together by means of
wing walls, on each side to the height of
the preceding, from there each wall must
be built separate and not tied together.
The inside four "a inches of the flue shall
be built of fire brick to a height of fif-
teen Q5) feet above the breeching and
to commence two feet below the breech-
ing ana bonded to the backing every sew
enth course.
The lowerspart or base of the chimney
may be built plumb to a height Of thirty
t5o) teet and from there the upper part
shall be built to a batter of at least three
tenths to the foot. The top Of such CHM
ney shall be capped off with terra-cotta,
stone or cast iron.
Every chimney shall be provided with
cleaning door and an iron ladder either
on the inside or outside of the chimney
TO the top of the same. All bricks used
TO be the best assorted sewer bricks
laid in lime or cement mortar All fire
brick shall be laid in fire clay All
openings for breeding over three feet in
width shall be arched or guarded against
crushing by the introduction of steel or
beams laid in the wall over the opening
in such a manner as to prevent the fire
striking them
Wrought iron or steel stacks shall have
iron or steel base plates resting on
foundations of brick, stone or concrete
iron rods shall be built into the founda-
ton for the purpose of fastening the
stack, which shall be braced at least
every nifty feet in height from three
sides by means of steel wire ropes or
rods OF sufficient strength.
Rolled iron or steel used in building
such a stack shall be not less than three
SlNteenths (S-l6) of an inch thick All
such stacks containing twelve thousand
square inches or over in area shall he
lined with fire brick laid in fire CLAW TO a
height of at least twenty-five feet above
breeding.
The tops of such chimneys or smoke
stacks shall extend to a height of not
less than twelve feet above any roof
within a radius of fifty feet thereof and
If shavings or saw dust is used as f iItaT
5haii be covered on top with a heavy wire
netting.
Sec. 70. Chimneys of CupOIas-
Iron cupola chimneys Of fo,,ndries shall
extend at least ten feet above the high
est point of any roof within a radius Of
nifty feet of such cupola, and be covered
S Oh tOp win a heayy wire netting. No
WOOD work shall be placed within a
radius Of two feet of the cupoia.
Sec. so. Hearths-
All hearths shall be supported bv trir,-
aner arches OF brick. stone, iron or con-
crete or be Of single stone at least six
inches thick built into the chimney and
supported by iron beams one end Of
which shall be securely built into the
1l.aSohry OF the chimney or an adjoining
val or which shall otherwise rest unon
dncombustible support. "P0i
Inc prIck Jambs of every fire place NJ,
gIGte opening shall be at least eight
hches wide each, and the back of s1ch
oIeninS shall be at least eight iroIa.
dhlcK. All hearths and trimmer arches
shail be at least twelve inches longer on
each side than the width of sucb onen-
least ont