INSTALLATION
The shaded area in the diagram shows all allowable combinations of straight vertical and offset to vertical terminations, using two 90
Rigid Pipe Venting Systems for Propane and Natural Gas. Two 45
•
Vent must be supported at offsets.
•
Firestops are required at each fl oor level and whenever passing through a wall.
•
Maintain clearances to combustibles as listed in the "Clearances" section.
•
Refer to "Vent Restrictor Position" section for details on how to change the vent restrictor to Set 1, Set 2 or Set 3 if required.
Note: Must use optional fl ue adapter when using Rigid Pipe (Part # 770-994).
22
VENTING ARRANGEMENTS
ALLOWABLE VERTICAL TERMINATIONS
o
elbows equal to one 90
0
2
4
6
40
38
36
34
32
30
28
Vent Restrictor on Set 3
26
24
22
20
18
Vent Restrictor on Set 2
16
14
12
Vent Restrictor on Set 1
10
8
6
4
2
0
o
elbow. Maximum of four 45
8
10
12 12
14
16
Regency
o
elbows, with
o
elbows allowed.
18
20
22
24
26
®
L900 Direct Vent Gas Fireplace
28
30