Venting And Chimneys (Installing Vent Pipe); Assemble Vent Sections; Attaching Vent To Firebox; Securing Vent Sections - Heatilator NBV30-IFT Installation Manual

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Venting and Chimneys (Installing Vent Pipe)

A. Assemble Vent Sections
This B-Vent appliance requires 5 in. B-vent double-wall
pipe. Follow the pipe manufacturer's installation guide-
lines when installing the appliance. This will ensure
proper operation and prevent safety hazards.
WARNING! Risk of Fire/Exhaust Fumes! Assemble
pipe sections per B-vent manufacturer's instructions. Use
support tabs for screws. Pipe may separate if not prop-
erly joined.
B. Attaching Vent to Firebox
Three tabs extend from appliance collar shield. Attach
tabs to first section of B-vent pipe using self-tapping 1/4
in. screws. See Figure 8.1.
Figure 8.1
C. Securing Vent Sections
Secure vent sections with vent supports following B-vent
manufacturer's instructions.
WARNING! Risk of Fire or Explosion! Use vent run
supports per vent manufacturer's installation instructions.
• Connect vent sections per vent manufacturer's
installation instructions.
• Maintain all clearances to combustibles. Maintain
specified slope (if required).
• Improper support may allow vent to sag or separate.
Heatilator • NBV30-IFT, NBV33-IFT, NBV36-IFT, NBV42-IFT Installation Manual • 2624-980 Rev. E • 10/20
D. Install Attic Insulation Shield
WARNING! Fire Risk. DO NOT allow loose materials or
insulation to touch vent. Hearth & Home Technologies re-
quires the use of an attic shield.
The National Fuel Gas Code ANSI Z223.1 and NFPA 54
requires an attic shield constructed of 26 gauge mini-
mum metal that extends at least 2 in. (51 mm) above
insulation.
Attic shields must meet vent manufacturer's specified
clearance and be secured in place per vent manufac-
turer's instructions.
Tabs
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