Empire Comfort Systems DVLT series Installation Instructions And Owner's Manual page 16

Maximum horizontal run for a minimum vertical rise
MAXIMUM HORIZONTAL RUN
WITH MINIMUM VERTICAL
o
RISE AND 90 ELBOW
12" SECTION
(DV(LT,TT)36)
24" SECTION
(DV(LT,TT)42)
Minimum vertical rise for maximum horizontal run
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Page 16
VENTING FIREPLACE
20"
(508mm)
Figure 24
◄ ►
19'- 5"
(5.9M)
Figure 25
Below Grade Installation
When it is not possible to meet the required vent terminal clearances
of 12" (305mm) above grade level, a snorkel kit is recommended.
It allows installation depth down to 7" (178mm) below grade level.
The 7" (178mm) is measured from the center of the horizontal vent
pipe as it penetrates through the wall.
Ensure the sidewall venting clearances are observed. If venting
system is installed below ground, we recommend a window
well with adequate and proper drainage to be installed around
the termination area.
Typical Basement Installation
▲
3" (76 mm) MINIMUM
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48"
(1219 mm)
▼
▲
(457 mm)
MINIMUM
▼
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(305 mm)
ABOVE
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GRADE
Figure 26
31259-3-0114
18"
12"