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NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
CLEARANCES
Minimum clearance to combustibles for the ap-
pliance is as follows: sides and back - 0" (0 mm),
floor - 0" (0 mm), adjacent wall - 0" (0 mm),
ceiling - 64" (1625 mm).
Venting
Gas Vent Rule – Gas vent caps are not permit-
ted 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
Table 1
(
Figure 3
), 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).
APPLIANCE SPECIFICATIONS
Figure 2
Table 1
Note: Venting terminals shall not be recessed
into a wall or siding.
Multiple Terminations – These appliances
may vent adjacent to and at the same level with
any other gas appliances (including direct-
vent appliances) provided that there is at least
2 ft. (0.6m) between the proximal edges of the
vent caps. These appliances may be vented
adjacent to a chimney vent servicing a solid
fuel fireplace provided the B-vent cap is at
least 2 ft. (0.6m) away from the nearest point
of the chimney opening.
Figure 3
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
Feet Meters
Minimum Height
from Roof to Lowest
Discharge Opening
45"
(1143 mm)
31 ⁹⁄₁₆"
(802 mm)
21 ¹⁄₄"
(540 mm)
8 ³⁄₁₆"
(208 mm)
Top View
Right Side
Gas Line
Access
Junction
Box
Combustion
Air Inlet
9 ⁷⁄₈"
(251 mm)
43"
(1092 mm)
21 ¹⁄₄"
(540 mm)
21 ¹⁄₄"
(540 mm)
Left Side
45"
(1143 mm)
Front
43"
(1092 mm)
7 ³⁄₁₆"
(186 mm)
41"
(1041 mm)
2"
(51 mm)
22 ⁵⁄₁₆"
(566 mm)
13 ³⁄₈"
(340 mm)
8 ³⁄₈"
(213 mm)
Fireplace Top Spacer
Fireplace
Top Spacer
19"
(483 mm)
5 ⁷⁄₈"
(149 mm)
47"
(1194 mm)
1"
(25 mm)
38"
(965 mm)
12 ¹⁄₂"
(318 mm)
8 ¹⁄₈"
(206 mm)
12 ⁷⁄₈"
(327 mm)
3 ³⁄₈"
(83 mm)
12 ¹⁄₂"
(318 mm)
Roof Pitch is X/12
12
X
Minimum Height from Roof
to Lowest Discharge Opening