Vertical Venting / Restrictor Settings for NG and LP
NG
37
37
35
35
33
33
31
31
29
29
27
27
25
25
23
23
21
21
19
19
17
17
15
15
13
13
11
11
9
9
7
7
5
5
3
3
1
1
0
0
10
| Gi29L Gas Insert
Setting #3
2" open
Setting #2
2-1/2" open
Setting #1
1" open
37
37
35
35
33
33
31
31
29
29
27
27
25
25
23
23
21
21
19
19
17
17
15
15
13
13
11
11
9
9
7
7
5
5
3
3
1
1
0
0
LP
Setting #4
4-1/2" open
Setting #2
2-1/2" open