12
INSTALLATION INSTRUCTIONS
General
Typical Common Vent Installations (cont.)
Rheem Part Number Common Vent Kit Description
SP20908A
SP20908B
SP20908C
SP20908D
SP20908E
SP20908F
SP20908G
8" Inline 2 units Direct Vent Header Kit
8" Inline 3 units Direct Vent Header Kit
8" Inline 4 units Direct Vent Header Kit
8" Inline 5 units Direct Vent Header Kit
8" Inline 6 units Direct Vent Header Kit
8" Inline 7 units Direct Vent Header Kit
8" Inline 8 units Direct Vent Header Kit
The following header vent kits can be purchased separately to create common venting system:
Rheem Part Number Common Vent Kit Description
SP20909A
SP20909B
SP20909C
SP20909D
SP20909E
SP20909F
SP20909G
8" Inline 2 units Room Air Header Kit
8" Inline 3 units Room Air Header Kit
8" Inline 4 units Room Air Header Kit
8" Inline 5 units Room Air Header Kit
8" Inline 6 units Room Air Header Kit
8" Inline 7 units Room Air Header Kit
8" Inline 8 units Room Air Header Kit
These kits contain only minimum required vent parts to create a common venting trunk line and a connection from
the trunk line to water heaters. Vent parts included in these kits DO NOT count for equivalent vent length except a
87 degree elbow for the air intake included in a room air kit. Additional vent parts will be required to complete the
common venting system. Refer to “Parts List” of this installation instructions for additional information.