The Detroit times., 1911-02-23


Hearths shall be supported BY
trimmer arches OF brick. stone. terra
Gotta freproonng or concrete. or BY
heavy metal bars. placed not less
(D end OF each bar protecting into
the wall OF Chimney and the other
end securely fastened TO the trimmer
joists. with a filling above the bars
OF not less than two CD courses or
brick. laid In cement mortar. Wood
moved before plasterins ceiling un-
Sec. 10. FIREPLAcrs. The
backs and the sides OF all nreplaces
shall not be less than eight (O
concrete or other incombustible ma
teriais and shall have an iron. terra
Gotta or firebriek. lining where used
for CRATES or open fires
Sec. IL. FRAMING. Wood franz
Ing around chimneys and hearths.
nor within two CD inches OF the out
or lining OF any 1ue.
ARTICLE XVIII. 4.,4
Hot AR, steam add Hot Water
section l. Ho aSs. Pipes An
hot air pipes or fiues shail be
made OF tin or other sheet metal,
and when built In masonry shall
be enclosed on all sides by walls
not less than four CD inches thick.
Hot air pipes In wood or stud par
titions shall have double walls with
not less than one-quarter CD Inch
air space between. and shall have
air tight joints.
Horizontal hot air pipes shall he
at least six co. inches below any
iath or plaster or wood ceiling. un-
less such ceiling IL protected by
q metal shield or asbestos mill
board separate from the hot air
pipe.
lister boxes placed In wood or other
combustible fioor or wall construc-
tion shall be made. OF metal, doubled
and perfectly isolated from contact
with such construction.
Sec. 3. COLD AIR BOXES. Cold
air boxes or ducts connecting to
hot air furnaces shall be made or
metal. brick or other incombustible
under the basement noor.
Sec. 4. VENTILATION FLUES.
Ventilation hues or ducts for thu
removal OF foul or vttiated air.
shall be constructed of sheet iron
or other incombustible material.
and isolated from wood or other
combustible material. such ducts
In school rooms shall be covered
on all exposed sides with metal
lath or other incombustible ma
teTldl anu TWO coats Oh pidattT.
Sec. s. STEAM OR HOT WATER
PIPES Steam or hot water heat
ing pipes shall not be placed In
contact with any timber or wood
work. and shall be protected by
metal shield or other incombpstible
fioors or csii hTs tn Of i S' or pias,
ter. in addition TO the metal shield,
they shall pass through metal
tubes. one-half inch larger In d.
ameter than the pipes:
Sec. 6. STEAM COILS. Boxes
enclosing steam or hot water coils
or indirect surface shall be made
OF metal or other incombustible ma
terial. They may be covered on
the outside with wood lined with
Sec. 7. COVERING OF PIPES.
All hot water and low pressure
steam pipe covering shall have an
inner layer OF incombustioie ma
terial at least one-eighth th)
inch IN thickness. with a total
thickness not less than one-half
(ii) inch. High pressure steam
pipe covering must be Of incofn-
bustible material not less than one
ID inch In thickness. All pipe
coverings must be protected from
contact with smoke pipes or other
heated surfaces.
ARTICLE XIX.
Heating Appliances.
Section /. FLUE CONNECTIONS.
All boilers. furnaces. fireplaces,
ovens. kitchen ranges and gas
stoves. and other heating appar-
atus. shall be connected with
fue. chimney or stack. as directly
and within the shortest distance
Sec. :. HEATING BOILERS. All
boilers, In residences used for heat
ing only shall be low pressure and
IN no case shall this pressureexceed
twelve (12) pounds per square inch.
Heating systems connected with
high pressure boilers, must have
positive reducing valves attached
In such a manner as Will prevent
a higher pressure than twelve (l2)
pounds. on any part OF the heating
Sec. 3. FURNACE CONSTITUTE
TON. Brick-sot furnaces must be
enclosed with double walls. laid
up with hard brick and mortar and
with an air space between these.
The tops Of such furnaces shall
be protected either with brick
arches properly anchored with tie
rods and buckstays with the top
and launches OF arch filled with
sand or by metal shields securely
fastened and filled with not less
than two inches of sand over
crown of arch OF highest point OF
metal shield.
Portable furnaces shall be en-
closed with double castings with at
least one-inch air space between
or with one outside casing lined
with asbestos paper and tin. The
castings shall be OF galvanized iron
the furnaces shall have top pro-
tected by metal shields and sand.
Sec. T. NO BRICK-SET BOIL
Frs, FURNACES OR OVENS ON
WOOD. Brick-set boilers, fur
naces,. and ovens shall not De sup
tion of wood or other combusti5ie
Sec 5. FLOOR PROTECTION
UNDER PORTABLE BOILERS.
FURNACES. OVENS ETC. Port
able boilers. hot air furnaces. cof-
fee roasters and other similar APP
piiances, when not brick-set, may
be supported on beams or moor
construction made OF wood or other
combustible material but in. any
than four "a inches thick OF con-
crete. or brick laid in cement NOR
tar. Such covering shall be laid
on a continuous sheet metal plate.
not less than one-eighth lh) men
the edges turned up four inches
on all sides. --.
The floor covering and plate
shall extend under the entire APP
piIance and four 90 feet In front
and two CD feet on each or the
Sec. 8. cLEALANcE AND PRO
TECTION. The distance from the
top OF any boiler. furnace. oven.
coffee rooster or other appliance
in which similar fires ara main
tanned, to ceiling OF wood or
1870 ,nconnbustible material shall
be not less than two CD feet.
For furnaces OF boilers In resi-
licences this distance may be re-
duced to ten (10) inches provided