Installation Instructions

MAXIMUM OFFSET IN INCHES
With Two
45°
Vent Elbows One One One One One One One
Size A B ONLY 6" Length 12" Length 18" Length 24" Length 3' Length 4' Length 5' Length
33 2
3
/
4
3
1
/
4
6
3
/
4
11 15
1
/
4
19
1
/
2
28 36
1
/
2
45
43
7
/
8
3
1
/
16
3
1
/
4
711
1
/
4
15
1
/
2
19
3
/
4
28
1
/
4
36
3
/
4
45
1
/
4
53
1
/
4
3
1
/
4
4
1
/
4
7
3
/
4
12 16
1
/
4
20
1
/
2
29 37
1
/
2
46
64 3
13
/
16
4
1
/
2
812
1
/
4
16
1
/
2
20
3
/
4
29
1
/
4
37
3
/
4
46
1
/
4
7 4
5
/
16
4
1
/
4
58
1
/
2
12
3
/
4
17 21
1
/
4
29
3
/
4
38
1
/
4
46
3
/
4
84
3
/
4
4
9
/
16
5
1
/
2
913
1
/
4
17
1
/
2
21
3
/
4
30
1
/
4
—47
1
/
2
95 5 6 —13
3
/
4
18 22
1
/
4
30
3
/
4
——
10 5
7
/
8
5
3
/
8
7
1
/
4
—15 19
1
/
4
23
1
/
2
32 — —
12 6 5
3
/
8
7
1
/
4
—15 19
1
/
4
23
1
/
2
32 — —
14 6
5
/
8
6
1
/
2
8
1
/
2
—16
1
/
4
20
1
/
2
24
3
/
4
33
1
/
4
——
16 7 7 9
1
/
4
—17 21
1
/
4
25
1
/
2
34 — —
18 7
9
/
16
7
1
/
2
10 — 17
3
/
4
22 26
1
/
4
34
3
/
4
——
20 8
1
/
2
8
5
/
8
10
1
/
4
—18 22
1
/
4
26
1
/
2
35 — —
22 8 7
5
/
8
10
1
/
4
—18 22
1
/
4
26
1
/
2
35 — —
24 8
5
/
8
8
5
/
16
11
1
/
4
—19 23
1
/
4
27
1
/
2
36 — —
26 9 9 12 — 19
3
/
4
24 28
1
/
4
36
3
/
4
——
28 9
1
/
2
9
1
/
2
12
3
/
4
—20
1
/
2
24
3
/
4
29 37
1
/
2
——
30 10 10 13
1
/
2
—21
1
/
4
25
1
/
2
29
3
/
4
38
1
/
4
9
AmeriVent Round and Oval Gas Vent
Installation Instructions
TERMINATION OF VENT MUST BE SECURELY GUYED OR
BRACED IF IT EXTENDS MORE THAN 5 FEET ABOVE ROOF.
SEE
TERMINATION
TABLE
SEAL AROUND
COLLAR &
FLASHINGS
MAINTAIN
1-INCH CLEARANCE
SUPPORT
LATERALS
ELBOW
RESUPPORT
TERMINATE
VENT
AT LEAST
5 FEET ABOVE
DRAFT HOOD
FIRESTOP
SUPPORT
ASSEMBLY
VERTICAL
VENT
DRAFT HOOD
CONNECTOR
LISTED
APPLIANCE
ADEQUATE
AIR SUPPLY
Figure 16
With Two 45° Elbows and:
Table 5
OFFSET
VERTICAL
RISE
45°
A
B
Note: The vertical rise
can be closely estimated
by adding one “A” and
one “B” dimension to
Maximum Offset.
B