Reznor VZ - Horizontal Venting

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VZ-VZH-VZT-IOM (08-24) 1047121-A
Horizontal Venting
NOTE: All horizontal venting is Category lll. Follow the vent material manufacturer’s instructions
for proper installation.
• Horizontal venting must be installed in accordance with the Venting General Requirements, Vent Material
Recommendations, Vent/Combustion Air Duct Length Requirements, and Vent Terminal Requirements
sections.
• Refer to the Common Venting section for common venting (one vent for more than one appliance) requirements.
• Vent pipe must be single-wall corrosion-resistant (minimum 26-gauge).
• A continuous section of Type B vent pipe may be used only to pass through the outside wall or outside of the
building—not permitted to be used inside the space.
Figure 21. Horizontal Venting
Figure 22. Model VZH Horizontal Venting Options
NON-COMBUSTIBLE WALL
COMBUSTIBLE OR NON-COMBUSTIBLE WALL
VENT
ADAPTER
4-INCH
SINGLE-WALL
VENT
TERMINAL
VENT
TERMINAL
18 INCHES
(MINIMUM)
VENT
ADAPTER
4-INCH
SINGLE-WALL
INDOOR HARSH/CORROSIVE ENVIRONMENT
INDOOR VENTED
INDOOR UNVENTED
OUTDOOR
VENT CAP
(COMBUSTION
AIR INLET)
4-INCH
SINGLE-WALL
VENT CAP
VENT
TERMINAL
VENT
TERMINAL
VENT
TERMINAL
BURNER
CABINET
BURNER
CABINET
BURNER
CABINET
BURNER
CABINET
BURNER TUBE
BURNER TUBE
BURNER TUBE
BURNER TUBE
VENT ADAPTER
VENT ADAPTER
VENT ADAPTER
VENT ADAPTER
(SEAM DOWN)