Instruction
14
Table 3
DuraChimney II Elbow Offset Chart
Elbow
Angle
From
Vertical
Chimney
Length
Between
Elbows
Size 8" I.D. Size 10" I.D. Size 12" I.D Size 14" I.D. Size 16" I.D.
Offset
Inches
Rise
Inches
Offset
Inches
Rise
Inches
Offset
Inches
Rise
Inches
Offset
Inches
Rise
Inches
Offset
Inches
Rise
Inches
15° 0" 3 ⁄ 25 ⁄
2
/
20
/
2
/
21
/
2
/
21
/
2 ¾
21
¹
/
15° 12" 5 ⁄ 35 ⁄
5
³
/
31 ¼ 5 ½ 31 ¾ 5 ½ 32 ¼
5
/
32 ¾
15° 18" 7 ⁄ 40 ⁄ 7 37 7 37 ½
7
¹
/
38
7
¹
/
36 ½
15° 36" 12 ⁄ 58 ⁄
11
/
54 ½
11
/
55 11 ¾
55
³
/
11 ¾
55
/
15° 48" 15 ⁄ 69 ⁄ 14 ¾ 66 14 ¾ 66 ½
14
/
67
14
/
67 ½
30° 0" 5 ⁄ 21 ⁄ 5 ¾
22
³
/
6
22
³
/
6 ¼ 24 ½
6
/
25 ½
30° 12" 10 ⁄ 30 11 ¼ 32 11 ½ 33 11 ¾ 34 12 35 ½
30° 18" 13 ⁄ 35 ½ 14 ¼
37
¹
/
14 ½
38
¹
/
14 ¾ 39 ¼ 15
40
/
30° 24" 16 ⁄ 40 ⁄ N/A N/A N/A N/A N/A N/A N/A N/A
30° 36" 22 ⁄ 51 ⁄ 23 ¼ 52 ¾ 23 ½ 53 ¾ 23 ¾
54
/
24 56 ¼
30° 48" 28 ⁄ 61 ¼ 29 ¼
63
¹
/
29 ½
64
¹
/
29 ¾ 65 ¼ 30
66
/
RISE
OFFSET