Specification

01/23 FORM NO. THD-PPGMX Rev. 1
In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.
Rheem Water Heating • 1115 Northmeadow Parkway, Suite 100
Roswell, Georgia 30076 • www.rheem.com
4
PART NO. DESCRIPTION
SP20897 2" CONCENTRIC TERMINATION
SP20245 3" CONCENTRIC TERMINATION
SP20796 4" CONCENTRIC TERMINATION
SP20285 2" FLAT TERMINATION
SP20286 3" FLAT TERMINATION
SP21091 2" POLYPROPYLENE FLEX PIPE – 30 FEET
AP19356 3" POLYPROPYLENE FLEX PIPE – 30 FEET
SP21172
AUTO SHUTOFF VALVE KIT
Maximus Accessories
Altitude Guide by Model
Flat Vent Termination (SP20285, SP20286)
Flex Venting Kit (SP21091, AP19356)
Concentric Vent Termination
(SP20897, SP20245, SP20796)
Shutoff Valve (SP21172)
MODEL 0-2000 FEET 2000-5400 FEET 5400-7800 FEET 7800-10,100 FEET
40G / 50K BTU NG
No Changes Needed –
Good Out The Box
Change to High Altitude Mode in User Interface
40G / 50K BTU LP
No Changes Needed –
Good Out The Box
Factory Order Model with “-H” Designation –
Change to High Altitude Mode in User Interface
N/A
50G / 50K BTU NG
No Changes Needed –
Good Out The Box
Change to High Altitude Mode in User Interface
50G / 50K BTU LP
No Changes Needed –
Good Out The Box
Factory Order Model with “-H” Designation –
Change to High Altitude Mode in User Interface
N/A
50G / 76K BTU NG
No Changes Needed – Good Out The Box
50G / 76K BTU LP
50G / 100K BTU NG
No Changes Needed – Good Out The Box
50G / 100K BTU LP