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Termination clearance for buildings with combustible and noncombustible exteriors.
Vertical Sidewall Installations
Important! Minimum clearance between vent pipes and combustible
materials is 3 inches (76 mm) on top, and 1 inch (25 mm) on bottom
and sides.
Important! When vent termination exits through foundation less
than 20 inches (508 mm) below siding outcrop, the vent pipe must
extend outward so that the horizontal vent termination is located
flush to, or beyond the outcrop siding.
Information on Various Venting Routes and Components
Important: It is always best to locate the fireplace in such a way
that minimizes the number of offsets and horizontal vent length.
Since it is very important that the venting system maintain its balance
between the combustion air intake and the flue gas exhaust, certain
limitations as to vent configurations apply and must be strictly
adhered to.
35362-5-0217
VENT TERMINATION CLEARANCES
Figure 7
The graph showing the relationship between vertical and horizontal
side wall venting will help to determine the various vent lengths
allowable.
The horizontal vent run refers to the total length of vent pipe from
the flue collar of the fireplace to the face of the outer wall.
The maximum horizontal vent run is 20 feet (6.10 m) when the
vertical vent rise is 8 feet (2.44 m). See Page 22, Figure 33.
Venting termination shall not be recessed into wall or siding.
ATTENTION: Vinyl Soffit, Vinyl Ceiling, Vinyl Overhang
Disclaimer
Clearances are to heat resistant material (i.e. wood, metal). This
does not include vinyl. Empire Comfort Systems Inc. will not be held
responsible for heat damage caused from terminating under vinyl
overhangs, vinyl ceilings or vinyl ventilated/unventilated soffits.
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