Figure 9. Venting: Termination requirements
Plain View
(All dimensions show Minimum distances.)
15
VENTING: TERMINATION REQUIREMENTS
In determining optimum vent termination, carefully evaluate external conditions especially when venting
directly through a wall. Since you must deal with odors, gases, and fly ash, consider aesthetics, prevail-
ing winds, distances from air inlets and combustibles, location of adjacent structures and any code
requirements.
1. Exhaust must terminate above combustion air inlet elevation.
2. Do not terminate vent in any enclosed or semi-enclosed area, (i.e. Carports, garage, attic crawl
space, etc.) or any location that can build up a concentration of fumes.
3. Vent surfaces can get hot enough to cause burns if touched by children. Non-combustible shielding
or guards may be required
4’ (1.2 m) BELOW a door, window (see note below), cavity, or air vent
4’ (1.2 m) HORIZONTALLY FROM a door, window (see note below), cavity, or air vent
1’ (305 mm) ABOVE a door, window (see note below), cavity, or air vent
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