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Your peace of mind can evaporate pretty quickly if your water heater develops a problem and you're in the dark about how to fix it. We've collated the most popular Rheem water heater manuals – so that you don't have to waste hours scouring the internet to find the right one. Just go through our search feature and pick the one you need!

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Installation · Setup · Maintenance · Repairs · Replacements

Rheem Water Heater Manuals

It can sometimes be difficult to find the correct instruction manual for your device, particularly for older, discontinued models.

Use the search bar below to find your specific Rheem Water Heater Manual. You can enter the model number, name or description. We’ve also included images to help.

If you have a manual you would like to list, submit it here. Or, if your model is not listed, leave a comment below.

All imagery and manuals are copyright © Rheem. Please visit https://www.rheem.com/ for the most up to date manuals and product information.

Model Image Model ID Description Document Updated Downloads
AP20070 Rev 1
Electric Residential Water Heaters 2019 User Manual
Document(s) Updated: 2019
AP18095-2
Electric Residential Hybrid Water Heaters 2016 User Manual
Document(s) Updated: 2016
EGSP2, EGSP6, EGSP10, EGSP15, EGSP30
Point-of-Use2.5 to 30-Gallon Capacities1.5 kW through 6 kW120, 208, 240, 277 and 480 Voltages Single Phase Electric 2016 Installation Manual
Document(s) Updated: 2016
AP21681
Electric Residential Hybrid Water Heater 2016 User Manual
Document(s) Updated: 2016
AP21681
Electric Residential Hybrid Water Heater 2016 Instruction Manual
Document(s) Updated: 2016
Water Heater
Electric Tankless Water heaters 2016 Installation Manual
Document(s) Updated: 2016
AP14328-3 (08/14)
Residential Gas – FVIR Certified Water Heaters 2015 Instruction Manual
Document(s) Updated: 2015
AP14184-3 (01/15)
Residential Gas – Low NOx Emissions Water Heaters 2015 User Manual
Document(s) Updated: 2015
AP17505 (01/15)
PowerVent Gas Water Heaters FVIR Compliant 2015 User Manual
Document(s) Updated: 2015
AP17537 (12/14)
FVIR Certified Gas Water Heaters 2015 User Manual
Document(s) Updated: 2015
AP14561-4 (08/14)
Side Inlet – Direct Vent Gas Water Heaters For Manufactured Housing 2014 User Manual
Document(s) Updated: 2014
AP14431-4 (12/14)
Side Inlet Gas – FVIR Certified Water Heaters 2014 Instruction Manual
Document(s) Updated: 2014
AP14381-6 (02/14)
Direct Vent Gas – FVIR Certified Water Heaters 2014 User Manual
Document(s) Updated: 2014
AP17498 (11/14)
Residential Gas – FVIR Certified Direct Vent Water Heaters 2014 User Manual
Document(s) Updated: 2014
AP9029-10 (06/13)
Electric Residential Water Heaters 2013 Instruction Manual
Document(s) Updated: 2013
AP15897-1 (08/12)
94% Condensing Tankless Water Heater 2013 Instruction Manual
Document(s) Updated: 2013
Rs80-40bp
AP14990-4 (05/13)
Pumped Solar Water Heating Systems 2013 User Manual
Document(s) Updated: 2013
199,900 Btu/hr, 180,000 Btu/hr, and 150,000 Btu/hr
AP16115-1 (8/12)
Tankless Water Heater 2013 User Manual
Document(s) Updated: 2013
AP11146-10 (05/13)
Commercial Electric Water Heater 2013 User Manual
Document(s) Updated: 2013
AP15411-1 (10/12)
Residential Gas – FVIR Certified Water Heaters 2012 User Manual
Document(s) Updated: 2012
AP16115-1 (8/12)
Tankless Water Heater 2012 User Manual
Document(s) Updated: 2012
AP16412 (05/12)
Low NOx Emissions Gas Water Heaters 2012 User Manual
Document(s) Updated: 2012
AP14896-3 (06/11)
Residential Gas – FVIR Certified Water Heaters 2012 Instruction Manual
Document(s) Updated: 2012
AP15696 (11/10)
Residential Gas – FVIR Certified Water Heaters 2011 User Manual
Document(s) Updated: 2011
RTE 3, RTE 7, RTE 9, RTE 13, RTE 18, RTE 27
Tankless Electric Water Heaters with Modulating Power Control 2011 User Manual
Document(s) Updated: 2011
Electric Tankless Series
RTE 3, RTE 7, RTE 9, RTE 13, RTE 18, RTE 27
Tankless Electric Water Heaters 2010 Installation Manual
Document(s) Updated: 2010
AP15735 (02/10)
Residential Gas Solar Water Heater 2010 User Manual
Document(s) Updated: 2010
AP15317 (10/09)
Direct Vent Gas Tankless Water Heater 2010 Instruction Manual
Document(s) Updated: 2010
AP15447 (08/09)
Electric Tankless Water Heaters 2010 User Manual
Document(s) Updated: 2010
AP15761(04/10)
Residential Gas FVIR Certified Water Heaters 2010 User Manual
Document(s) Updated: 2010
AP15873 (06/10)
Residential Gas – Low NOx Emissions Water Heaters 2010 User Manual
Document(s) Updated: 2010
AP15447 (10/10)
Electric Tankless Water Heaters 2010 Instruction Manual
Document(s) Updated: 2010
AP14818-1 (11/09)
Residential Gas – FVIR Certified PowerVent Water Heaters 2009 Instruction Manual
Document(s) Updated: 2009
AP15121-1
Electric Residential Heat Pump Water Heaters 2009 User Manual
Document(s) Updated: 2009
STID30, STID40, STID50 , STID120
Indirect Water Heater 2008 User Manual
Document(s) Updated: 2008
66 Tankless Series
RTG-66DV
Endless hot water for 2-3 bathroom homes 2008 User Manual
Document(s) Updated: 2008
AP14226-1 (06/08)
Residential Gas Water Heaters 2008 User Manual
Document(s) Updated: 2008
2-1/2 Gallon
RE2, RE6, 82VP30-1
Energy Miser Electric Water Heater 2008 User Manual
Document(s) Updated: 2008
RH DV50FV
Energy Miser Direct Vent Gas Water 2008 Installation Manual
Document(s) Updated: 2008
AP14558 (01/08)
Direct Vent Gas Tankless Water Heater 2008 User Manual
Document(s) Updated: 2008
80 and 120 Gallon
81V80HE-1, 81V80HE-T, 82V120HE-1, 82V120HE-T
Solar Heat Exchanger, Solar Tank, Electric Storage Water Heater 2008 Instruction Manual
Document(s) Updated: 2008
STID30, STID40, STID50, STID80, STID120
Indirect Water Heater 2008 Instruction Manual
Document(s) Updated: 2008
81VR80-1 , 81VR120-1 , 81VR80-T, 81VR120-T
Solaraide Storage Tank and Electric Storage Water Heaters for Solar Application 2008 User Manual
Document(s) Updated: 2008
AP14490 (12/08)
Pumped Solar Water Heating Systems 2008 User Manual
Document(s) Updated: 2008
42 & 53 Tankless Series
118,00 BTU, 145,000 BTU, RTG 2-42PV+
Tankless water heaters 2008 Installation Manual
Document(s) Updated: 2008
Tankless Series
GT-199PV, GT-199X, GT-199DV
Commercial Tenkless 2008 User Manual
Document(s) Updated: 2008
TKTB-104
Tankless Technical Bulletin 2008 Installation Manual
Document(s) Updated: 2008
RS47-21BP, RS80-42BP
Solaride Water Heating Systems 2008 Installation Manual
Document(s) Updated: 2008
74 Tankless Series
RTG -74PV indoor, RTG-74X outdoor, RTG-74DV
Endless hot water for 3 bathroom homes 2008 Installation Manual
Document(s) Updated: 2008
72V20-1, 72V30-2, 72V40-2, 72V52-2
Warrior Rheemglas Electric Water Heater for Manufactured Housing 2007 Installation Manual
Document(s) Updated: 2007
EGS50-C-9, EGS50-C-12, EGS85-C-9, EGS120-C-9
Surface Mounted Electric Tank-type Water Heaters 9 Kw Thru 36 Kw 2007 User Manual
Document(s) Updated: 2007
AP11564-10 (01/05
Light Duty Commercial Electric Water Heater 2007 User Manual
Document(s) Updated: 2007
1146.2
Low Nox Universial Gas Commercial Water Heater 2007 User Manual
Document(s) Updated: 2007
6 Kw Thru 18 Kw
10 U.S. GALLON Capacity
Electric Booster Water Heaters 2007 Installation Manual
Document(s) Updated: 2007
AP12129-4 (01/05
Commercial Point-of-Use Electric Water Heater 2007 Instruction Manual
Document(s) Updated: 2007
GL60-51N Natural, GL60-46P Propane
Glasslined Storage Gas Commercial Water Heaters 2007 User Manual
Document(s) Updated: 2007
Multi-Flue Commercial
AP13463-3 (02/07
Commercial Power Direct Vent Water heater 2007 User Manual
Document(s) Updated: 2007
AP12668-5 (01/05)
Residential Gas Water Heaters 2007 User Manual
Document(s) Updated: 2007
30, 40, 50, 65, 80 and120 Gallon Tank Type
ELDS30, ELDS40, ELDS50, ELDS120
3KW-12KW Electric Commercial Water Heater 2007 User Manual
Document(s) Updated: 2007
75 Gallon Capacity
GPV75-75F-2, GPV75-75P-2
PowerVent Commercial Gas Water Heaters 2007 Installation Manual
Document(s) Updated: 2007
Solar Premier Loline
Electric Boost Water Heater 2007 Installation Manual
Document(s) Updated: 2007
ST80(A), ST120(A, ST175(A)
Commercial Storage Tanks 2007 User Manual
Document(s) Updated: 2007
AP14328 (03/07)
Residential Gas Water Heaters 2007 User Manual
Document(s) Updated: 2007
HE45-100N, HE45-130N, HE45-160N, HE119-199LP
High Efficiency Commercial Gas Water Heater 2007 User Manual
Document(s) Updated: 2007
136,000 BTU Max Input
Residential Indoor Gas Tankless Water Heater 2007 User Manual
Document(s) Updated: 2007
PRO40-40FV 1, PRO50-45FV 1
Professional Gas Water Heaters 2007 User Manual
Document(s) Updated: 2007
G50-98, G100-400(A
Universal Gas Commercial Water Heaters 2006 User Manual
Document(s) Updated: 2006
PRO415TM, PRO425TM, PRO615TM, PRO620TM
Professional Designed Exclusively For The Plumbing 2006 User Manual
Document(s) Updated: 2006
CMR50245, CMR75245
MARATHON Residential Electric Water Heaters 2006 Installation Manual
Document(s) Updated: 2006
10 Gallon Capacity
E10-6-G, E10-54-G
6KW-54KW Electric Booster Commercial Water Heaters 2006 User Manual
Document(s) Updated: 2006
Streamline Closed Circuit
Gas Boosted Solar Water Heater 2006 Owners Manual
Document(s) Updated: 2006
AP14016
Indoor and Outdoor Gas Tankless Water Heater 2006 Instruction Manual
Document(s) Updated: 2006
RTG2-42PVN, RTG-53PVN, RTG-74PVN-1
Tankless Indoor Gas Water Heaters 2006 User Manual
Document(s) Updated: 2006
GP100-150, GP100-200, GP100-250(A)
VentMaster Power Direct Vent Gas Commercial Water Heaters 2006 Installation Manual
Document(s) Updated: 2006
ES50, ES8, E120
Heavy Duty Electric Commercial Water Heater 2006 User Manual
Document(s) Updated: 2006
RR30-30FV, RR40-36FV1, RR50-40FV1
Fury Gas Water Heaters 2006 User Manual
Document(s) Updated: 2006
ST80(A), ST120(A), ST175(A), ST950A
Gas Hot Water Supply Heaters 2006 Installation Manual
Document(s) Updated: 2006
100 Gallon Tank-Type
GD100-250(A), GD100-360(A), 250,000 BTU/Hr. thru 360,000 BTU/Hr
Induced Draft Gas Commercial Water Heater 2006 Installation Manual
Document(s) Updated: 2006
EGSP2, EGSP6, EGSP10, EGSP30
Point-Of-Use Electric Commercial Water Heaters 2006 Installation Manual
Document(s) Updated: 2006
GT-199PVN-1, GT-199XN-1, GT-199DVN-1
Tankless Heavy-Duty Gas Water Heaters 2006 Installation Manual
Document(s) Updated: 2006
PVS40-36, PVS40-36P, PVS50-36, PVS50-36P
Rheem PowerVent Induced Draft Gas Water Heater with the Guardian System 2006 User Manual
Document(s) Updated: 2006
6 Kw Thru 54 Kw
EG50-C-9, EG50-C-12, EG50-C-15, EG120-C-9, EG120-C-54
Immersion Electric Tank-type Water Heaters 2006 Installation Manual
Document(s) Updated: 2006
RTG-53XN, RTG-74XN-1
Tankless Outdoor Gas Water Heaters 2006 User Manual
Document(s) Updated: 2006
RR317T, RR415TM, RR615TM
FURY Residential Electric Water Heaters 2006 Owners Manual
Document(s) Updated: 2006
HE Series, GE Series, PE Series, SE Series
AP12168-7 (01/05)
Electric Residential Water Heaters 2005 User Manual
Document(s) Updated: 2005
130 – 70
Gas Domestic Indoor Water Heater 2005 Owners Manual
Document(s) Updated: 2005
G50-98, G75-125, G82-156, G76-180
AP11646, AP11645
Power Vent Kits for Gas Commercial Water Heaters 2005 User Manual
Document(s) Updated: 2005
10u.s. Gallon (37.8 L) Capacity
6KW THRU 18KW
Commercial Water Heaters 2005 Installation Manual
Document(s) Updated: 2005
265 Litre and 275 Litre
Gas Heavy Duty Water Heater 2005 Instruction Manual
Document(s) Updated: 2005
50, 85 And120 Gallon Capacities
6 KW THRU 54 KW
Commercial Water Heaters 2005 Instruction Manual
Document(s) Updated: 2005
HE45-100, HE119-199
AdvantagePlus Sealed-Combustion Gas-Fired Commercial Water Heaters 2005 Installation Manual
Document(s) Updated: 2005
HG Series, GG Series, GP Series, PG Series, SG Series, SG Series
Gas Residential Water Heaters 2005 Installation Manual
Document(s) Updated: 2005
CMR50245, CMR75245
MARATHON Residential Electric Water Heaters 2005 User Manual
Document(s) Updated: 2005
HE Series, GE Series, PE Series, SE Series
AP12168-7 (01/05
Electric Residential Water Heaters 2005 User Manual
Document(s) Updated: 2005
Gas Heater
Gas Domestic Outdoor Water Heater 2005 Owners Manual
Document(s) Updated: 2005
Egs-surface Mounted Thermostat Models
9 KW THRU 36 KW
Commercial Water Heater 2005 Installation Manual
Document(s) Updated: 2005
Solar Loline Conversion Kit
Electric Water Heater 2003 Installation Manual
Document(s) Updated: 2003
GG Series
Gas Residential Water Heaters 2003 Installation Manual
Document(s) Updated: 2003
AP15212-1 (08/10)
Residential Gas – Low NOx Emissions PowerVent Water Heaters 2002 Instruction Manual
Document(s) Updated: 2002
HG Series, GG Series, GP Series, PG Series, SG Series
Gas Residential Water Heater 2001 Instruction Manual
Document(s) Updated: 2001
150 to 2,500
Large Volume Electric High-Power Commercial Water Heater 2000 User Manual
Document(s) Updated: 2000
136-1826
240454
Water Heater 2000 Installation Manual
Document(s) Updated: 2000
AP14380 -1 (07/08)
Residential Gas – FVIR Certified Direct Vent Water Heaters 2000 User Manual
Document(s) Updated: 2000
AP10386-18 (06/11)
Commercial Gas Water Heater 2000 User Manual
Document(s) Updated: 2000
AP10414-9 (11/03)
Electric Water Heaters For Manufactured Housing (Mobile Home) 2000 Instruction Manual
Document(s) Updated: 2000
EGSP2, EGSP6, EGSP10, EGSP15 thru 30
Electric Commercial Water Heaters 2000 Installation Manual
Document(s) Updated: 2000
PH-16 (FISN)(FISP), PH20R-(IFSN)(IFSP)(OFN)(OFP), PTG2-42(PVN)(PVP), PTG53-(PVN)(PVP)(XN)(XP), RTG2-42(PVN)(PVP
Indoor and Outdoor Gas Tankless Water Heater 2000 User Manual
Document(s) Updated: 2000
G50-98, G75-125, G82-156, G76-180
AP11646, AP11645
Power Vent Kits for Gas Commercial Water Heaters 2000 User Manual
Document(s) Updated: 2000
HE45-100, HE45-130, HE80-160, HE119-199
AdvantagePlus Sealed-Combustion Gas-Fired Commercial Water Heaters 2000 User Manual
Document(s) Updated: 2000
90 Gallon Tank-Type
550,000 BTU/Hr, 715,000 BTU/Hr, GX90-550, GX90-640
High-Input Gas Commercial Water Heaters 2000 Installation Manual
Document(s) Updated: 2000
AP13945-2, 199,000 Btu Input
Direct Vent Gas Tankless Water Heater User Manual
Document(s) Updated:
AP10046-12 (03/05)
Water Heaters For Manufactured Housing (Mobile Home) User Manual
Document(s) Updated:

How to find your Rheem Water Heater model number?

Most water heaters come equipped with a Rating Plate that includes relevant info such as serial number, model number, manufacturer's name, year and month of productions, etc.

However, the best part is that you won't have to spend hours on end trying to locate the rating plate on your Rheem Water Heater – because the sticker is located on the water heater's exterior. Tankless water heaters generally have the stickers placed on the right-side of the surface. 

Rheem Water Heater Instructions

Rheem manufacturers residential and commercial water heaters – which means their water heating product line is rather diverse. However, a typical Rheem water heater manual contains the following categories to make for easy navigation:

  • Safety Information: This section includes all the information you should read before installing or using the heater. 
  • Installation Instructions: As the name suggests, this heading contains details related to installing the water heater. It includes three sub-headings – location, water connections, electrical connections. There's also a handy installation checklist at the end to ensure you've followed all the directions.
  • Operating Instructions: This section is divided into two subheadings – safety controls and water temperature. For instance, the manual lists out four easy directions to reset the temperature limiting control. 
  • Care and Cleaning: Contains directions for draining the water heater, vacation and extended shutdown, and routine preventative maintenance. 
  • Customer Service: This part includes details and diagrams about replacement parts, cavity insert instructions, and wiring diagrams.

At the very end of the user manual you’ll find detailed steps about how to register your product’s ownership and a small fill-out form for the same purpose.

Rheem Water Heater Troubleshooting

Compared to some of the other user manuals we've compiled on our site, Rheem water heater manuals contain concise troubleshooting tips. However, that's probably because of the obvious safety risks involved in water heater repairs. That's why it's best if you contact a licensed contractor to install and repair any issues you might face. Remember, safety always comes first. 

Additionally, you should also note that some manufacturer warranties for water heaters can be voided if the product is not installed by a licensed professional. Make sure to find out if such terms apply to Rheem water heaters before purchase and installation. 

The troubleshooting tips section lists out the possible causes and solutions for the following problems:

  • Rumbling noise
  • Relief valve Pressure producing popping noise or draining
  • Rattling noise during periods of water usage
  • Not enough or no hot water
  • Water is too hot

Types of Rheem Water Heaters

Rheem manufactures and sells a diverse line of cooling and heating products for both commercial and residential use. This line-up includes oil furnaces, 98.7% fuel-efficient (annual) gas furnaces, heat pumps, 20 SEER (Seasonal Energy Efficiency Ratio) air conditioners, and package units. The company also creates indoor air quality (IAQ) products such as UV lamps, humidifiers, and media filters.

As far as residential water heaters are concerned, here are the categories you’ll find on the company website:

  • Tankless Water Heaters – these heat water without the need for a storage tank, and this makes them perfect for folks who are short on space in the bathroom. 
  • Hybrid Water Heaters – pull in hot air into the appliance's evaporator coil to heat water. Also referred to as a heat pump water heater, this device needs a moderate or a warm climate to work efficiently.
  • Tank-type Gas Water Heaters – are the most prevalent water heaters because of their low installation and operating cost. These water heaters run on gas and require ample space for setup.
  • Tank-type Electric Water Heaters – are pretty much like tank-type gas water heaters in function, except that these heaters run on electricity.
  • Specialty Water Heaters – are tank-type water heaters that are powered by solar energy.

About Rheem

Donald and Richard Rheem founded Rheem manufacturing in 1925, but the company started manufacturing water heating products in 1931 after acquiring the John Wood Manufacturing Company of California. 

Since then, the company has expanded operations, and now, it manufactures cooling, heating, commercial refrigeration, air quality, and water heating products. As a matter of fact, Rheem happens to be the largest manufacturer of water heating products in all of North America – which is no small feat. 

In 2008, the US Department of Energy ranked the company at fifth place in the central AC and heat pump market, and in 2015 Rheem won the most popular water heater title by Builder magazine.

Sources

https://www.rheem.com/

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