18
Heat & Glo • PRIMO48, PRIMO48ST, PRIMO60, PRIMO60ST, PRIMO72, PRIMO72ST Installation Manual • 2310-970 Rev. L • 2/16
A. Vent Termination Minimum Clearances
PVI-SLP
4
4
Termination Location and Vent Information
Fire Risk.
Maintain vent clearance to combustibles as
speci
fi
ed.
•
DO NOT
pack air space with insulation or other
materials.
Failure to keep insulation or other materials away
from vent pipe could cause overheating and
fi
re.
WARNING
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
Figure 4.1 Minimum Height From Roof To Lowest Discharge
Opening
* 3 foot minimum in snow regions
HORIZONTAL
OVERHANG
VERTICAL
WALL
GAS DIRECT VENT
TERMINATION CAP
12
X
ROOF PITCH
IS X/ 12
LOWEST
DISCHARGE
OPENING
2 FT.
MIN.
20 INCHES MIN.
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
Figure 4.2 Staggered Termination Caps
Gas, Wood or Fuel Oil
Termination Cap
B
Gas
Termination
Cap **
A *
*
If using decorative cap cover(s), this distance may need to be
increased. Refer to the installation instructions supplied with the
decorative cap cover.
**
A
B
6 in. (minimum) up to 20 in.
152 mm/508 mm
18 in. minimum
457 mm
20 in. and over
0 in. minimum
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.
