6 Vent Clearances and Framing

A. Pipe Clearances to Combustibles

WARNING

Fire Risk

Explosion Risk

Maintain vent clearance to combustibles as specified.

Do not pack air space with insulation or other materials.

National building codes recommend using attic shield to keep loose materials/ insulation from contacting vent.

Failure to keep insulation or other materials away from vent pipe may cause fire.

Follow vent pipe manufacturer’s instructions for all clear- ances around pipe.

B. Wall Penetration Framing

Do not pack with insulation or other materials.

Use manufacturer's installation instructions for framing dimensions

Figure 6.1 Exterior Wall Hole

For a wall penetration consult B-vent pipe manufacturer’s instructions. Use same dimensional framing materials as those used in the wall construction.

Note: MUST terminate vertically.

C. Vertical Penetration Framing

Use B-vent manufacturer’s firestops to provide adequate clearances.

WARNING

Fire Risk

Keep loose materials or blown insulation from touching the vent pipe.

National building codes recommend using attic shield to keep loose materials/ insulation from contacting vent.

Hearth & Home Technologies requires the use of an attic shield.

Heatilator • Novus BV-Mesh4031-553 Rev F • 11/07

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Heatiator NB3933M, NB4842M, NB4236MI Vent Clearances and Framing, Pipe Clearances to Combustibles, Wall Penetration Framing

NB3933M, NB3630M, NB3630MI, NB3933MI, NB4236M specifications

The Heatiator series of gas fireplaces, including the models NB4236MI, NB4842MI, NB3933M, NB4236M, and NB3933MI, epitomizes modern heating technology with a focus on efficiency, design, and user comfort. These models are engineered to provide warmth while enhancing the aesthetic appeal of any living space.

One of the standout features of the Heatiator series is its advanced combustion technology. The fireplaces are designed to maximize heat output while minimizing emissions. This is achieved through high-quality burners that ensure a clean and efficient flame, allowing users to enjoy the ambient glow without compromise. The models boast impressive thermal efficiencies, meaning they convert a high percentage of the fuel consumed into usable heat, which is an essential factor for eco-conscious consumers.

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