Sterling RF-45 User Manual
Page 14
14
Table 4 - Category I Horizontal Venting Requirements
Vent
Maximum Number
Maximum Horizontal
Minimum
Extension
Unit
Diameter
Elbows
Vent Length
Vertical Rise
Distance
Size
(in)
*
(Ft.)
(In.)
from Wall
30
4
1
4
12
36
4
1
8
18
36
4
2
4
12
36
4
2
8
18
36
45
4
1
10
18
36
4
2
5
18
36
5
2
10
12
36
60
5
2
10
12
36
75
5
2
10
24
36
90
5
1
10
24
24
5
2
10
36
24
*
One elbow is required to make the vertical extension, See Figure 13.
Figure 13 - Category I Horizontal Venting Requirements
D-06838A