DuraVent DuraTech - Page 20

20
T Table 4
Chimney Sizing Chart for Fireplace Installations
and 30” high, and the chimney height as 20’.
Example shows replace opening as 36” wide
12” diameter pipe.
The correct ue size for the sample problem is
Dotted line represents sample problem.
T
T
W
W
H
H
HEIGHT
WIDTH
(FEET)
HEIGHT
CHIMNEY
FIREPLACE
OPENING (INCHES)
8
7
6
30
16
14
20
8
10
15
12
10
50
40
30
24
48
60
36
42
72
36
30
42
24
48
18
18
20
22
24
20
18
60
72
84
84