// CODE SNIPPET
803.10.4 Connector Pass-Through
JUMP TO FULL CODE CHAPTER
Chimney connectors shall not pass through any floor or ceiling, nor through a foe-resistance-rated wall assembly. Chimney connectors for domestic-type appliances shall not pass through walls or partitions constructed of combustible material to reach a masonry chimney except where one of the following apply:
For SI: 1 inch = 25.4 mm, 1.0 Btu x in/ft2 • h °F = 0.144 W/m2 • K.
- The connector is labeled for wall pass-through and is installed in accordance with the manufacturer's instructions.
- The connector is put through a device labeled for wall pass-through.
- The connector has a diameter not larger than 10 inches (254 mm) and is installed in accordance with one of the methods in Table 803.10.4. Concealed metal parts of the pass-through system in contact with flue gases shall be of stainless steel or equivalent material that resists corrosion, softening or cracking up to 1,800°F (980°C).
|A 3.5-inch-thick brick wall shall be framed into the
combustible wall. An 0.625-inch-thick fire-clay liner
(ASTM C315 or equivalent)° shall be firmly cemented
in the center of the brick wall maintaining a 12-inch
clearance to combustibles. The clay liner shall run
from the outer surface of the bricks to the inner surface
of the chimney liner.
|A labeled solid-insulated factory-built chimney section
(1-inch insulation) the same inside diameter as
the connector shall be utilized. Sheet steel supports
cut to maintain a 9-inch clearance to combustibles
shall be fastened to the wall surface and to the chimney
section. Fasteners shall not penetrate the chimney
flue liner. The chimney length shall be flush with the masonry chimney liner and sealed to the masonry
with water-insoluble refractory cement. Chimney manufacturers' parts shall be utilized to securely fasten the chimney connector to the chimney section.
|A steel ventilated thimble having a minimum thickness of 0.0236 inch (No. 24 gage) having two 1-inch
air channels shall be installed with a steel chimney
connector. Steel supports shall be cut to maintain a 6-inch clearance between the thimble and combustibles. The chimney connector and steel supports shall have a minimum thickness of 0.0236 inch (No. 24 gage). One side of the support shall be fastened to the wall on all sides. Glass-fiber insulation shall fill the 6-inch space between the thimble and the supports.
|A labeled solid-insulated factory -built chimney section (1-inch insulation) with a diameter 2 inches larger than the chimney connector shall be installed with a steel chimney connector having a minimum thickness of 0.0236 inch (24 gage). Sheet steel supports shall be positioned to maintain a 2-inch clearance to combustibles and to hold the chimney connector to ensure that a 1-inch airspace surrounds the chimney connector through the chimney section. The steel support shall be fastened to the wall on all sides and the chimney section shall be fastened to the supports. Fasteners shall not penetrate the liner of the chimney section.|
- Insulation material that is part of the wall pass-through system shall be noncombustible and shall have a thermal conductivity of 1.0 Btu x in/ft2 • h • °F or less.
- All clearances and thicknesses are minimums.
- Materials utilized to seal penetrations for the connector shall be noncombustible.
- Connectors for all systems except System B shall extend through the wall pass-through system to the inner face of the flue liner.
- ASTM C315.
Related Code Sections
803.10.4 Chimneys and Vents, Connector Pass-Through
Chimney connectors shall not pass through any floor or ceiling, nor through a foe-resistance-rated wall assembly. Chimney connectors for domestic ...
2015 Michigan Mechanical Code > 8 Chimneys and Vents > 803 Connectors > 803.10 Installation > 803.10.4 Connector Pass-Through
308.4.2.3 General Regulations, Chimney Connector Pass-Throughs
The clearance reduction methods specified in Table 308.4.2 shall not be utilized to reduce the clearances required for chimney connector pass ...
2015 Michigan Mechanical Code > 3 General Regulations > 308 Clearance Reduction > 308.4 Allowable Reduction > 308.4.2 Reduction Table > 308.4.2.3 Chimney Connector Pass-Throughs
Appendix A Chimney Connector Pass-Throughs
For SI: 1 inch = 25.4 mm. FIGURE A-1 CHIMNEY CONNECTOR SYSTEMS ...
717.7 Fire and Smoke Protection Features, Flexible Ducts and Air Connectors
Flexible ducts and air connectors shall not pass through any fire-resistance-rated assembly. Flexible air connectors shall not pass through any wall ...
2015 Michigan Building Code > 7 Fire and Smoke Protection Features > 717 Ducts and Air Transfer Openings > 717.7 Flexible Ducts and Air Connectors
M1803.3.1 Chimneys and Vents, Floor, Ceiling and Wall Penetrations
A chimney connector or vent connector shall not pass through any floor or ceiling. A chimney connector or vent connector shall not pass through ...
2015 Michigan Residential Code > 18 Chimneys and Vents > M1803 Chimney and Vent Connectors > M1803.3 Installation > M1803.3.1 Floor, Ceiling and Wall Penetrations