Termination Clearances - Empire Comfort Systems MILLIVOLT DVD32FP30N-3 Installation Instructions Manual

Termination clearance for buildings with combustible and noncombustible exteriors.
INSIDE CORNER
"A" = COMBUSTIBLE 9" (229mm)
= NONCOMBUSTIBLE 2" (51mm)
BALCONY
WITH PERPENDICULAR SIDE WALL
"G" = COMBUSTIBLE 9" (229mm)
= NONCOMBUSTIBLE 2" (51mm)
"H" = COMBUSTIBLE 18" (457mm)
= NONCOMBUSTIBLE 12" (305mm)
Vertical sidewall installations
Important! Minimum clearance between vent pipes and combustible
materials is three inches (76 mm) on top, and one inch (25 mm) on
bottom and sides.
Important! When vent termination exits through foundation less
than 20" below siding outcrop, the vent pipe must extend outward
so that the horizontal vent terminal 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.
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terMiNatioN clearaNces

OUTSIDE CORNER
BALCONY
WITH NO SIDE WALL
Figure 43
RECESSED LOCATION
"C" = CLEARANCE FROM CORNER
IN RECESSED LOCATION
COMBUSTIBLE 9" (229mm)
NONCOMBUSTIBLE 2" (51mm)
"D" = MINIMUM WIDTH FOR BACK WALL
OF A RECESSED LOCATION
COMBUSTIBLE 38" (965mm)
NONCOMBUSTIBLE 24" (610mm)
"E" = MAXIMUM DEPTH OF 48" (1219mm)
FOR RECESSED LOCATION
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 Figure 22.
Venting terminals shall not be recessed into wall or siding.
38713-5-1019