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A gas vent shall terminate in accordance with one of the following:
  1. Gas vents that are 12 inches (305 mm) or less in size and located not less than 8 feet (2438 mm) from a vertical wall or similar obstruction shall terminate above the roof in accordance with Figure G2427.6.4.
  2. Gas vents that are over 12 inches (305 mm) in size or are located less than 8 feet (2438 mm) from a vertical wall or similar obstruction shall terminate not less than 2 feet (610 mm) above the highest point where they pass through the roof and not less than 2 feet (610 mm) above any portion of a building within 10 feet (3048 mm) horizontally.
  3. As provided for direct-vent systems in Section G2427.2.1.
  4. As provided for appliances with integral vents in Section G2427.2.2.
  5. As provided for mechanical draft systems in Section G2427.3.3.


For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.

FIGURE G2427.6.4 (503.6.5)
TERMINATION LOCATIONS FOR GAS VENTS WITH LISTED CAPS 12 INCHES OR
LESS IN SIZE NOT LESS THAN 8 FEET FROM A VERTICAL WALL
 
G2427.6.4.1 (503.6.5.1) Decorative Shrouds
Decorative shrouds shall not be installed at the termination of gas vents except where such shrouds are listed for use with the specific gas venting system and are installed in accordance with manufacturer's instructions.

Related Code Sections

G2427.6.4 Fuel Gas, (503.6.5) Gas Vent Terminations
G2427.6.4 (503.6.5) TERMINATION LOCATIONS FOR GAS VENTS WITH LISTED CAPS 12 INCHES OR LESS IN SIZE NOT LESS THAN 8 FEET FROM A VERTICAL WALL ...
G2427.6.4 Fuel Gas, (503.6.5) Gas Vent Terminations
A gas vent shall terminate in accordance with one of the following: Gas vents that are 12 inches (305 mm) or less in size and located not less ...
503.6.5 Chimneys and Vents, Gas Vent Terminations
8 feet (2438 mm) from a vertical wall or similar obstruction shall terminate above the roof in accordance with Figure 503.6.5. Gas vents ...