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Heatilator • Caliber BV Series • 4040-262 • Rev M • 08/0924
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10
Installing Vent Pipe
A. Assembly of 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 unit. This will ensure proper
operation and prevent safety hazards.
Assemble
pipe sections per B-vent manufacturer’s instructions. Use
support tabs for screws. Pipe may separate if not prop-
erly joined.
B. Attach Vent to Firebox
Three tabs extend from appliance collar shield. Attach
tabs to rst section of B-vent pipe using self-tapping 1/4 in.
screws supplied with appliance. See Figure 10.1.
Figure 10.1 Attach Vent to Firebox
C. Secure Vent Sections
Secure vent sections with vent supports following B-vent
manufacturer’s instructions.
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
specied slope (if required).
• Improper support may allow vent to sag or separate.
D. Install Attic Insulation Shield
allow loose materials or
insulation to touch vent. Hearth & Home Technologies Inc.
requires 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 minimum
metal that extends at least 2 in. (51 mm) above insulation.
Attic shields must meet vent manufacturer’s specied
clearance and be secured in place per vent manufactur-
er’s instructions.