DuraVent DuraChimney II - Manual (Page 11)

11
Table 2
Chimney Sizing Chart for Fireplace Installations
Dotted line represents sample problem. Example shows fireplace opening as 36" wide and 30"
high, and the chimney height as 20'. The correct flue size for the sample is 12" diameter pipe.
T
W
H
T
W
H
8
7
6
30
16
14
20
8
10
15
12
10
50
40
30
24
48
60
36
42
72
HEIGHT
36
30
42
24
48
18
WID
TH
18
20
22
24
20
18
60
72
84
84
HEIGHT (FEET)
CHIMNEY
FIREPLACE
OPENING (INCHES)
CHIMNEY PIPE
DIAMETER (INCHES)
T
W
H
T
W
H
8
7
6
30
16
14
20
8
10
15
12
10
50
40
30
24
48
60
36
42
72
HEIGHT
36
30
42
24
48
18
WID
TH
18
20
22
24
20
18
60
72
84
84
HEIGHT (FEET)
CHIMNEY
FIREPLACE
OPENING (INCHES)
CHIMNEY PIPE
DIAMETER (INCHES)