Heatiator NB3933M Vent Clearances and Framing, A. Pipe Clearances to Combustibles, Fire Risk

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-Mesh • 4031-553 Rev F • 11/07 15