Hearth and Home Technologies Direct Vent Room Heater 839-1460 - Manual (Page 8)

Page 8 September 1, 2008 Quadra-Fire · Sapphire · 250-7233H
4
Termination Locations
A. Vent Termination Minimum Clearances
20 in. (508mm)
(minimum) to
Perpendicular
Wall (Gas Only)
A
18 in.
(457mm)
Gas or Wood
Termination
Gas
Termination
Gas Termination
A 6 in. (152mm)
Wood & Fuel Oil Termination
20 in. (508mm)
Figure 4.2 Multiple Vertical Termination
Figure 4.1 Termination Clearances
Figure 4.3 specifies minimum vent heights for various
pitched roofs.
Fire Risk.
Explosion Risk.
Maintain vent clearance to combustibles
as specified.
WARNING
• Do not pack air space with insulation or other
materials.
Failure to keep insulation or other materials
away from vent pipe may cause fire.
Roof Pitch H (Min.) Ft.
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
Over 18/12 to 20/12 ........................................... 7.5
Over 20/12 to 21/12 ........................................... 8.0
* 3 foot minimum in snow regions
12
X
TERMINATION
CAP
LOWEST
DISCHARGE
OPENING
ROOF PITCH
IS X/12
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
VERTICAL
WALL
HORIZONTAL
OVERHANG
2 FT.
MIN.
20 IN.
20 in. (508mm)
(minimum) to
Perpendicular
Wall (Gas Only)
Measure vertical clearances from this surface.
Measure horizontal clearances from this surface.
(See Figure 4.4 for specific clearances.)
Figure 4.3 Minimum Height from Roof to Lowest Discharge
Opening