Empire Comfort Systems DVP36PP32EN-3 Series Installation Instructions And Owner's Manual page 21

VENTING FIREPLACE - TOP (continued)
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.
See page 38. 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.
3" (76mm)
MINIMUM
PIPE STRAP
48"
(1219mm)
TYPICAL BASEMENT INSTALLATION
Examples of possible venting systems using one (1) 90° elbow.
Eight (8) feet is listed as minimum vertical vent run with 20 feet of
maximum horizontal vent run. Vertical dimensions are based on
centerline to centerline of pipe. Horizontal dimensions are based
on centerline of pipe to end of termination.
30786-3-0614
COMBUSTIBLE
PROJECTION
18" (457mm)
MINIMUM
12" (305mm)
ABOVE GRADE
Figure 23
SEE GRAPH FOR PERMISSIBLE "H" AND "V" DIMENSIONS
Examples of possible venting systems using two (2) 90° elbows.
V is listed as minimum vertical dimensions and H1 + H2 is listed
as total of maximum horizontal dimensions. The maximum vertical
and horizontal distances for two (2) 90° elbows as shown in Figure
25 is 20 feet.
Attention: Refer to Figure 22 for additional venting requirements.
1
SEE GRAPH FOR PERMISSIBLE "H" AND "V" DIMENSIONS
NOTE: H1 AND H2 MUST BE ADDED TOGETHER TO USE CHART
FIRESTOP AT
CEILING LEVEL
Figure 24
FIRESTOP AT
CEILING LEVEL
Figure 25
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