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38712-4-0920
38712-4-0920
VENTING FIREPLACE - TOP (CONT’D)
Example of possible venting systems using two 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 90° elbows as shown in
Figure 33 is 20 feet (6.1 m).
Attention: Refer to Figure 30 for additional venting requirements.
FIRESTOP AT
CEILING LEVEL
SEE GRAPH FOR PERMISSIBLE “H” AND “V” DIMENSIONS
NOTE: H1 AND H2 MUST BE ADDED TOGETHER TO USE CHART
V
H2
H1
Figure 33
B
C
A
CENTER OF ELBOW
STRAIGHT OUT
(MINIMUM)
D
C
B
FIREPLACE
SERIES
HARD ELBOW Dimensions (inches)
A
B
C
D
DVCD32FP
41-1/2
4-1/2
6-1/2
9-1/8
DVCD36FP
41-1/2
4-1/2
6-1/2
9 1/8
DVCD42FP
43-1/2
4-1/2
6-1/2
9 1/8
FIREPLACE
SERIES
FLEX PIPE 90 DEGREE BEND
Dimensions (inches)
A
B
C
D
DVCD32FP
43
4-1/2
6-1/2
9-1/8
DVCD36FP
43
4-1/2
6-1/2
9-1/8
DVCD42FP
45
4-1/2
6-1/2
9-1/8
Minimum hole location dimensions for through the wall horizontal
installations with 90 degree elbow off top of fireplace.
Figure 34