Section 4: Termination Locations; Vent Termination Minimum Clearances - Quadra-Fire HUDBAY-FS Owner's Manual

4
Termination Locations
A. Vent Termination Minimum Clearances
WARNING
Fire Risk.
Explosion Risk.
Maintain vent clearance to combus-
tibles as specified.
• Do not pack air space with insulation or
other materials.
Failure to keep insulation or other materials
away from vent pipe may cause fire.
Measure vertical clearances from this surface.
Measure horizontal clearances from this surface.
(See Figure 4.4 for specific clearances.)
Figure 4.1 Termination Clearances
A
6 in. (minimum) up to 20 in.
152 mm/508 mm
20 in. and over
Gas, Wood or Fuel Oil
Termination Cap
B
Gas
Termination
Cap **
* If using decorative cap cover(s), this distance may need to be
increased. Refer to the installation instructions supplied with the
decorative cap cover.
In a staggered installation with both gas and wood or fuel oil
**
terminations, the wood or fuel oil termination cap must be
higher than the gas termination cap.
Figure 4.2 Multiple Vertical Termination
Page 8
B
18 in. minimum
457 mm
0 in. minimum
A *
Quadra-Fire • Hudson Bay • 7003-121 Rev. Q • 8/13
2 FT.
20 INCHES MIN.
MIN.
DISCHARGE
GAS DIRECT VENT
TERMINATION CAP
Roof Pitch
Flat to 6/12 ........................................................ . 1.0*
Over 6/12 to 7/12 ....................................................... . 1.25*
Over 7/12 to 8/12 .............................................. . 1.5*
Over 8/12 to 9/12 .............................................. . 2.0*
Over 9/12 to 10/12 ............................................ . 2.5*
Over 10/12 to 11/12 .......................................... . 3.25
Over 11/12 to 12/12 .......................................... . 4.0
Over 12/12 to 14/12 .......................................... . 5.0
Over 14/12 to 16/12 .......................................... . 6.0
Over 16/12 to 18/12 .......................................... . 7.0
Figure 4.3 Minimum Height from Roof to Lowest Discharge
Over 18/12 to 20/12 .......................................... . 7.5
Opening
Over 20/12 to 21/12 .......................................... . 8.0
* 3 foot minimum in snow regions
Figure 4.3 specifies minimum vent heights for various
pitched roofs.
HORIZONTAL
OVERHANG
VERTICAL
WALL
LOWEST
OPENING
X
12
ROOF PITCH
IS X/ 12
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
H (Min.) Ft.