20
4031-117 Rev I
02/04
NOVUS DIRECT VENT INSTALLATION INSTRUCTIONS
Figure 40 - Chimney Height for Vertical Termination
Figure 41 - Multiple Vertical Termination
6. Install the Vertical Termination Cap
To install the vertical termination cap, simply slide the inner collar of the cap over the inner vent and place the outer
collar of the cap over the outer vent. Secure with three screws into the outer vent.
Roof Pitch
H (Min.) Ft.
Flat to 6/12 ................................................ 1.0
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
Table 1 - Vent Height
5. Chase/Termination Installation
Figure 40 and Table 1 specify minimum vent heights for various pitched roofs. Vent sections may have to be cut to
a certain length.
These vent heights are necessary for safety and do not ensure draft-free operation. Trees, buildings, adjoining roof
lines, adverse conditions, etc. may create a need for a taller vent should down drafting occur. See Figure 41 for
multiple vertical terminations.