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6
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Venting
Gas Vent Rule – Gas vent caps are not permitted
within 8 feet (2.4 mm) of a vertical wall or similar
obstruction. Gas vent caps that are located 8' or
more from a portion of a building which extends
at an angle greater than 45° upward from the
horizontal may terminate in accordance with the
table in
Figure 4
, provided that in no case shall
any discharge opening on the cap be less than 2'
(610 mm) horizontally from the roof surface
(National Fuel Gas Code ANSI Z223.1 (NFPA 54)
7.6.2) (CAN/CGA B149).
Note: Venting terminals shall not be recessed
into a wall or siding.
Flat to 6/12 1' 0" 0.3
Over 7/12 to 9/12 2' 0" 0.6
Over 10/12 to 12/12 4' 0" 1.2
Over 13/12 to 16/12 6' 0" 1.8
Over 17/12 to 21/12 8' 0" 2.4
Roof Slope
Minimum Height
from Roof to Lowest
Discharge Opening
Feet Meters
Roof Pitch is X/12
12
X
Minimum Height from Roof
to Lowest Discharge Opening
Figure 4
FRAMING SPECIFICATIONS
Figure 5
Table 3
*
Note: See also Figure 32 on page 14 for an illustration of this clearance, for
clearances to a sidewall and for mantel clearances.
APPLIANCE CLEARANCES
**Note: The nailing tabs and the area directly behind the nailing tabs are exempt
from the clearances described in the above table. See Figure 9 on page 8.
.oNledoMABCDE
0055-DRG/CHG
.ni334/1834/3512/12/182/18
mm548489493612612
0056-DRG/CHG
.ni044/3044/3812/165
mm53015301754561721
0055-DRG/CHG0056-DRG/CHG
kcaB
)mm31(.ni2/1)mm31(.ni2/1
srecapsot)mm0(.ni0
sediS
**)mm31(.ni2/1**)mm31(.ni2/1
srecapsot)mm0(.ni0
srecapSpoT)mm0(.ni0
roolF)mm0(.ni0
morF*
fomottoB
ottinU
gnilieC
)mm4661(.ni2/156)mm5171(.ni2/176
tneV)mm4.52(.ni1
ECNARAELCECIVRES
tnorF)sretem9.0(teeF3
Header
E
A
*C
B
D
Gas Supply Line
Left or Right Side - 5500
Right Side Only - 6500
*Note: The framed depth - dimension “C”- from a framed wall, must always
be measured from a finished surface. If a wall covering such as drywall is to
be attached to the rear wall, then dimension “C” must be measured from the
drywall surface. It is important that this dimension be exact.
Use Only 2x4 or Larger
Lumber
Note: If the Outside Combustion
Air Kit is to be installed, it must
be installed before the appliance
is framed and enclosed in the
finishing walls.