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R
31
Heatilator • ECO-ADV-PS35/50 • 7058-142D • July 21, 2010
C. Pellet Venting Charts
Figure 31.1
Fire Risk.
• Only LISTED venting components may be
used.
• NO OTHER vent components may be used.
Substitute or damaged vent components may
impair safe operation.
WARNING
The maximum horizontal venting allowed with no vertical vent-
ing attached is 48 inches (1219mm) including one 90° elbow
or two 45° elbows. This is our recommended horizontal vent
-
ing installation. Addition of any horizontal venting beyond 48
inches (1219mm) requires a minimum 60 inches (1524mm) of
additional vertical vent. Horizontal sections of vent pipe should
have a 1/4 inch (6.35mm) rise per foot.
Hearth & Home Technologies recommends any installation
requiring more than two 90° elbows, or more than 15 feet (4.5m)
of venting to use 4 inch (102mm) vent.
NOTICE:
These are guidelines for successful venting of your pellet appliance. The more vertical rise you can obtain in
your system, the better it will perform. Horizontal vent runs can accumulate ash and will need to be cleaned more often.
Try to keep them as short as possible.
ONE 90º ELBOW
Total
Horizontal
Minimum
Vertical
Vent
Diameter
4
0
3
5
5
3
6
6
3
7
7
3
8
8
4
9
9
4
10
10
4
11
11
4
12
12
4
13
13
4
14
14
4
15
15
4
16
16
4
17
17
4
18
18
4
19
19
4
TWO 90º ELBOWS
Total
Minimum
Vent
Horizontal
Vertical
Diameter
2
5
3
3
6
3
4
7
3
5
8
3
6
9
3
7
10
4
8
11
4
9
12
4
10
13
4
11
14
4
12
15
4
13
16
4
14
17
4
15
18
4
THREE 90º ELBOWS
Total
Minimum
Vent
Horizontal
Vertical
Diameter
2
11
4
3
12
4
4
13
4
5
14
4
6
15
4
7
16
4
8
17
4
9
18
4
10
19
4
11
20
4
Figure 31.2
Figure 31.3
45° elbow is equivalent to 1 foot of straight pipe
90° elbow is equivalent to 3 feet of straight pipe
Minimum Vertical Vent for One Elbow
0
5
10
15
20
0
5
10
15
20
Horizontal Run, (ft)
Minimum Vertical Rise
(ft)
Minimum Vertical Vent for Two Elbows
0
5
10
15
20
0
5
10
15
Length of Horizontal Sections, (ft)
Minimum Vertical
Rise, (ft)
Minimum Vertical Vent for Three Elbows
0
5
10
15
20
25
0
2
4
6
8
10
12
Length of Horizontal Sections (ft)
Minimum Vertical Rise
(ft)
Minimum Vertical Vent for One Elbow
Minimum Vertical Vent for Two Elbows
Minimum Vertical Vent for Three Elbows
Horizontal Run (FT)
Length of Horizontal Sections (FT)
Length of Horizontal Sections (FT)