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10' or Less
2' Min.
Termination 10 Feet Or Less From Ridge, Wall or Parapet
More than 10'
NOTE: No Height
above parapet
required when distance
Wall or
from walls or parapet is
Parapet
more than 10 feet.
More than 10'
Ridge
Termination More Than 10 Feet From Ridge, Wall or Parapet
C
2 - A
HECK
NY SOLID OR LIQUID FUEL APPLIANCES VENTED
INTO THIS CHIMNEY CHANNEL
Solid fuel appliances include fireplaces, wood stoves, coal fur-
naces, and incinerators.
Liquid fuel appliances include oil furnaces, oil-fired boilers and
oil-fired water heaters.
Appliances which burn propane (sometimes referred to as LP
(liquefied petroleum)) gas are considered gas-fired appliances.
2' Min.
3' Min.
Wall or
Parapet
Chimney
10' or Less
2' Min.
3' Min.
Chimney
3' Min.
Chimney
Height above any
roof surface within
10 feet horizontally.
10'
2" Min.
3' Min.
Chimney
C
3 - C
C
HECK
HIMNEY
Damage from condensate usually shows up first in the crown.
If any of the following trouble signs are present, the condition of
the crown is not satisfactory:
a) Crown leaning
b) Bricks missing
c) Mortar missing
d) Tile liner cracked
e) No tile liner
f)
Salt staining at mortar joints. (White stains, and mortar
becomes sandy and/or erodes.)
For problems a, b, or c, see Fix 3. If problems d, e, or f are
present, see Fix 4. IMPORTANT: It may be necessary to follow
both Fix 3 and Fix 4.
C
4 - D
C
HECK
EBRIS IN
A cleanout (dropleg) must be present such that the upper edge
of the cleanout cover is at least 12 inches below the lower edge
of the lowest chimney inlet opening.
A chimney without a cleanout could become partially blocked
by debris. If no cleanout is present, the chimney must be re-
lined (Fix 4). Remove the cleanout cover, and examine the
cleanout for debris. If significant amounts of any of the following
are found:
Fuel oil residue
Bricks
Mortar or sand
Pieces of the tile liner
Rusted pieces of the metallic liner - reline the chimney
(Fix 4).
C
5 - L
C
HECK
INER
ONDITION
If a metal liner is present, it must be checked. It cannot be
assumed that all existing metal liners are correctly installed
and in good condition.
Remove the lowest existing vent connector, and examine the
inside of the elbow or tee at the base of the liner. A small amount
of soot may be considered acceptable, provided the installer
vacuums it away. If rusted pieces of the liner have collected
here, the metal liner must be removed and replaced (Fix 4).
Next, gently tap the inside of the liner with a Phillips screw-
driver. If the screwdriver perforates the liner, or if the tapping
does not sound like metal hitting metal, the liner must be re-
moved and replaced (Fix 4).
Remember that all appliances must be vented inside the liner.
Venting one appliance inside the liner and another appliance
outside the liner is not acceptable.
Next, use a flashlight and small mirror to sight up the liner. B
vent must be supported so as to not come into direct contact
with the chimney walls or tile liner. If it is not, it can probably be
rehung so as to be acceptable. A thimble or fire stop may be
helpful here.
14
C
.
ROWN
ONDITION
LEANOUT
.

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