Vent Termination Clearances; Horizontal Termination System - Superior SLDVT-40NM Installation Instructions Manual

VENT TERMINATION CLEARANCES

These instructions should be used
as a guideline and do not supersede
local codes in any way. Install venting
according to local codes, these
instructions, the current National
Fuel Gas Code (ANSI-Z223.1) in the
USA or the current standards of CAN/
CSA-B149.1 in Canada.
Vertical Vent Termination Clearances
Terminate multiple vent terminations
according to the installation codes listed
above, Figure 4, Figure 5, and Table 5.
Figure 4: Multiple Terminations
6
SUPERIOR DIRECT-VENT GAS FIREPLACES • SLDVT-30/35/40/45 • INSTALLATION INSTRUCTIONS
Figure 5: Vertical Vent Termination
TERMINATION HEIGHTS FOR VENTS ABOVE
Horizontal Overhang
2 FT MIN.
Vent
Termination
Storm Collar
Flashing
Concentric
Vent Pipe
Table 5: Termination Heights for Vents
above Flat or Sloped Roofs
Roof Pitch
Flat to 6 1/2
6 1/2 to 7 1/2
7 1/2 to 8 1/2
8 1/2 to 9 1/2
9 1/2 to 10 1/2
10 1/2 to 11 1/2
11 1/2 to 12 1/2
12 1/2 to 14 1/2
14 1/2 to 16 1/2
16 1/2 to 18 1/2
18 1/2 to 201/2
20 1/2 to 21 1/2
DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Clearances
FLAT OR SLOPED ROOFS
2 FT
Vertical
MIN.
Wall
Lowest
Discharge
Opening
H*
X
12
Roof Pitch is X/12
1 inch (25.4 mm) Minimum
Clearance to Combustibles
*H = MINIMUM HEIGHT FROM ROOF TO
LOWEST DISCHARGE OPENING OF VENT
Feet * Meters *
1 0.3
1 1/4 0.38
1 1/2 0.46
2 0.61
2 1/2 0.76
3 1/4 0.99
4 1.22
5 1.52
6 1.83
7 2.13
7 1/2 2.29
8 2.44
Horizontal Vent
Termination Clearances
The horizontal vent termination must have
a minimum of 6 in. (152 mm) clearance
to any overhead combustible projection of
2 1/2 in. (64 mm) or less. For projections
exceeding 2 1/2 in. (64 mm), see Figure 7.
For additional vent location restrictions,
refer to Table 6.
Figure 6: Horizontal Vent Termination
Clearances, Side Elevation
Combustible Projection
2-1/2 inches or less in length
Combustible Projection greater
than 2-1/2 inches in length
Ventilated
Soffit
Unventilated
Soffit
(152 mm)
18" 12"
(457 mm) (305 mm)
Termination Kit
Figure 7: Horizontal Vent Termination
Clearances
All horizontal terminations
may be located as close as
6" (152mm) to any
(non-combustible and
combustible) exterior
sidewall. This distance
may be decreased to 2"
(51mm) for non- -
combustible exterior
sidewalls only, if the
SV4.5HT-2 termination
is used.
Termination Kit
6"