Hearth and Home Technologies NOVUS GNBC33 - Manual (Page 7)

12-02 7 34615 Rev G
NOVUS B-VENT INSTALLATION INSTRUCTIONS
CAUTION:
Provide adequate clearances around the air openings into the combustion chamber and adequate accessibil-
ity clearances for servicing and proper operation.
D. SETTING THE APPLIANCE
This appliance may be placed on a smooth combustible or noncombustible, continuous flat surface. When the appliance
is installed directly on carpeting, tile or other combustible material other than wood flooring, the appliance shall be installed
on a metal or wood panel extending the full width and depth of the appliance. Slide the appliance into position and level
the appliance from side-to-side and front-to-back. Shim with noncombustible materials as necessary.
Secure the appliance by bending out the nailing flanges on each side of the appliance and nail to framing. The nailing
flanges have been positioned 5/8 inch back from the front of the appliance to allow the addition of drywall.
E. VENTING
1. VENT HEIGHT
This appliance requires a 5” B-vent for operation.
Never downsize pipe. It must be terminated above
the roof line. Follow all B-vent requirements and
installation instructions, including minimum
clearances.
The minimum height of vent installation must be nine
feet from the top or twelve feet from the base of the
appliance. Horizontal run must never exceed 50% of
the height of the vent system as shown in Figure 4.
2. ATTACHING VENTING
a. Assembling Vent Sections. Attach straight vent
section to the top of appliance. Use only B-vent
sections.
b. Attaching the Vent to the Collar Shield. Three
tabs extend from the collar shield to the B-vent
section. Screw the tabs to the B-vent section using
the self-tapping ¼” screws supplied with the
appliance.
c. Using Elbows. Elbows exceeding 45° from the
vertical shall be considered horizontal and therefore
adapt horizontal run limitations. See Figure 5.
Figure 4
Venting Off the Top of Appliance
Note: Vertical rise off the top of the appliance before el-
bowing creates a less restrictive venting environment.
Figure 5 - Using Elbows
WARNING!
To prevent contact with sagging or loose insulation, the appliance must not be installed against vapor
barriers or exposed insulation. Localized overheating could occur and a fire could result.