City Series Power Vent
The gas power vent system is designed to allow the installation of a gas appliance when typical vent configurations (shown in this manual) are
not possible.
Important:
Minimum overall vent run must be 4 feet.
Maximum total vent length = 72' maximum of six - 90° elbows permitted.
One 90° elbow = two 45° elbows.
Maximum total negative vent length = 7'.
Note: Maximum length of 72 feet is based on overall length of combined
chimney components.
VENTING ARRANGEMENTS FOR HORIZONTAL TERMINATIONS
RIGID PIPE: MUST USE RIGID PIPE ADAPTOR 770-994 AND 946-606 PIPE REDUCER TO 4" X 6 5/8"
Note: Rigid pipe is approved for up to 72 feet.
Note: Flex pipe is approved for up to 40 feet using 2 X 946-756-- 20 foot flex kits.
0
2
4
6
40
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
8
Horizontal (Feet)
4
0
6
10
12
16
18
14
20
22
24
-3 Ft. max.
32
34
28
26
30
36
38
42
44
40
46
48
50
54
56
52
58
60
Vertical
(Feet)
62
64
66
68
70
72
-2
-4
-6
-8
Restrictor – Factory Set @ 1"
2
72' overall length Max.
(shown with 5 - 90º elbows)
72' run (no rise)
Shown with 2 elbows (negative run 72')
72' overall length Max.
(shown with 5 - 90º elbows)
0
2
4
6
40
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
8
Horizontal (Feet)
4
0
6
10
12
16
18
14
20
22
24
-3 Ft. max.
32
34
28
26
30
36
38
42
44
40
46
48
50
54
56
52
58
60
Vertical
(Feet)
62
64
66
68
70
72
-2
-4
-6
-8
Restrictor – Fully Open
2
72' overall length Max.
(shown with 5 - 90º elbows)
72' run (no rise)
Shown with 2 elbows (negative run 72')
72' overall length Max.
(shown with 5 - 90º elbows)
CB40EPV Gas Fireplace
