20
T
Table 4
Chimney Sizing Chart for Fireplace Installations
and 30” high, and the chimney height as 20’.
Example shows fireplace opening as 36” wide
12” diameter pipe.
The correct flue size for the sample problem is
Dotted line represents sample problem.
T
T
W
W
H
H
HEIGHT
WID
TH
(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
