Hearth and Home Technologies GNBC33 Warning - Risk Of Fire, Firestop Spacer/Vent Installation

NOVUS B-VENT INSTALLATION INSTRUCTIONS

WARNING - RISK OF FIRE!

Always maintain minimum clearances or greater around the vent system. Do not pack air spaces with insulation or other material. The flow of combustion and ventilation air must not be obstructed.

WARNING!

The horizontal run of vent must have a 1/4” rise for every 1 ft. of run towards the termination. Never al- low the vent to run downward. This could cause high temperatures and may present a fire hazard.

3.FIRESTOP SPACER/VENT INSTALLATION

Frame an opening and install a firestop spacer whenever the vent penetrates a ceiling floor area, as shown in Figure 6. Frame the opening with the same sized lumber as used in the ceiling/floor joist. Unless the flue is offset, the hole should be directly above the appliance. DO NOT pack insulation around the vent. Assemble vent sections with three screws per joint.

WARNING!

When vent sections exceeding three feet in length are installed between an offset/return, structural sup- port must be provided to reduce off-center loading and prevent vent sections from separating at the vent joints. Follow all B-vent manufacturer guidelines.

Figure 6

Installing the Firestop Spacer

4.CHASE/TERMINATION INSTALLATION

Figure 7 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.

34615 Rev G 8 12-02