11
Proper Chimney
Termination?
(Check 1)
Chimney channel
free of solid and
liquid fuel
appliances?
(Check 2)
Change venting
arrangements
(Fix 2)
Crown in good
condition
(Check 3)
Rebuild crown
(Fix 3)
and/or Reline
(Fix 4)
Reline
(Fix 4)
Reline
(Fix 4)
Cleanout free of
debris?
(Check 4)
Liner in good
condition?
(Check 5)
Reline
(Fix 4)
Dilution air
available?
(Check 6)
Complete the
installation.
(Check 7)
CHECK 1 - PROPER CHIMNEY TERMINATION.
A masonry chimney used as a vent for gas fired equipment must
extend at least three feet above the highest point where it passes
through the roof. It must extend at least two feet higher than any
portion of a building within a horizontal distance of 10 feet. In
addition, the chimney must terminate at least 3 feet above any
forced air inlet located within 10 feet. The chimney must extend at
least five feet above the highest connected equipment draft hood
outlet or flue collar.
If the chimney does not meet these termination requirements, but
all other requirements in the checklist can be met, it may be pos-
sible for a mason to extend the chimney. If this will not be practi-
cal, see Fix 1.
Wall or
Parapet
2' Min.
2' Min.
3' Min.
Chimney
10' or Less
10' or Less
2' Min.
3' Min.
Chimney
Termination 10 Feet Or Less From Ridge, Wall or Parapet
More than 10’
Wall or
Parapet
NOTE:
No Height
above parapet
required when distance
from walls or parapet is
more than 10 feet.
Chimney
3’ Min.
More than 10’
10’
2” Min.
3’ Min.
Chimney
Height above any
roof surface within
10 feet horizontally.
Ridge
Termination More Than 10 Feet From Ridge, Wall or Parapet
CHECK 2 - ANY 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.
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