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Model # XG40S12DM40U0

Internet #204321568

Store SKU #1000034935

Rheem Performance Platinum 40 Gal. Short 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater
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Rheem

Performance Platinum 40 Gal. Short 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater

$ 693 59 /each
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Product Overview

The Rheem Performance Platinum 40 Gal. Natural Gas Short Water Heater comes with a 40,000 BTU/hour environmentally friendly Low NOx burner that provides ample hot water for households with 2 to 4 people. The electronic ignition system eliminates the standing pilot light, saves energy and monitors system performance. Its maintenance free combustion air intake system means there are no filters to clean and replace. A premium grade anode rod provides long lasting tank protection. Factory installed temperature and pressure relief valve and 3/4 in. water connections are included with the water heater for easy installation. The water heater is ENERGY STAR qualified. This Rheem Performance Platinum model is Wi-Fi compatible allowing for remote monitoring of the water heater's operation (Wi-Fi Module REWRA631GWH sold separately).
  • California & Utah Residents (Utah Effective 7/1/18): THIS WATER HEATER DOES NOT MEET ULTRA LOW NOX (ULN) EMISSIONS REQUIREMENTS. REGULATIONS PROHIBIT THE SALE, SHIPMENT OR INSTALLATION OF THIS WATER HEATER IN ANY AIR QUALITY DISTRICT THAT REQUIRES ULN WATER HEATERS. Please refer to the maps below to confirm if your home is in a district that requires ULN emission water heaters, and if so please select an approved ULN model.
  • Requires standard 110-Volt electrical outlet (3-prong grounded) for installation
  • 40 Gallon tank provides ample hot water for households with 2 to 4 people
  • Natural gas water heater costs less to operate than electric models
  • Delivers 69 Gallons of hot water in the first hour
  • 12-year limited warranty on tank and parts for your convenience
  • 3 year in home labor warranty for peace of mind
  • 0.65 uniform energy factor indicates an ENERGY STAR qualified water heater
  • Maintenance free - no filter to clean or replace
  • Electronic ignition system simplifies the startup process and eliminates the need for a pilot light
  • Electronic diagnostic gas valve monitors system performance
  • Rated for installations up to 10,100 ft.
  • Wi-Fi compatible with the purchase of Rheem EcoNet home comfort Wi-Fi module (sold separately) for gas water heaters (Wi-Fi model # REWRA631GWH)
  • Designed for easy replacement of your existing water heater
  • Call 1-855-400-2552 before noon for same-day service in most areas, or Visit our Water Heater Installation page for more information.



  • Meets 2015 NAECA standards



  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Product Overview

Model #: XG40S12DM40U0
Sku #: 1000034935
Internet #: 204321568

The Rheem Performance Platinum 40 Gal. Natural Gas Short Water Heater comes with a 40,000 BTU/hour environmentally friendly Low NOx burner that provides ample hot water for households with 2 to 4 people. The electronic ignition system eliminates the standing pilot light, saves energy and monitors system performance. Its maintenance free combustion air intake system means there are no filters to clean and replace. A premium grade anode rod provides long lasting tank protection. Factory installed temperature and pressure relief valve and 3/4 in. water connections are included with the water heater for easy installation. The water heater is ENERGY STAR qualified. This Rheem Performance Platinum model is Wi-Fi compatible allowing for remote monitoring of the water heater's operation (Wi-Fi Module REWRA631GWH sold separately).

  • California & Utah Residents (Utah Effective 7/1/18): THIS WATER HEATER DOES NOT MEET ULTRA LOW NOX (ULN) EMISSIONS REQUIREMENTS. REGULATIONS PROHIBIT THE SALE, SHIPMENT OR INSTALLATION OF THIS WATER HEATER IN ANY AIR QUALITY DISTRICT THAT REQUIRES ULN WATER HEATERS. Please refer to the maps below to confirm if your home is in a district that requires ULN emission water heaters, and if so please select an approved ULN model.
  • Requires standard 110-Volt electrical outlet (3-prong grounded) for installation
  • 40 Gallon tank provides ample hot water for households with 2 to 4 people
  • Natural gas water heater costs less to operate than electric models
  • Delivers 69 Gallons of hot water in the first hour
  • 12-year limited warranty on tank and parts for your convenience
  • 3 year in home labor warranty for peace of mind
  • 0.65 uniform energy factor indicates an ENERGY STAR qualified water heater
  • Maintenance free - no filter to clean or replace
  • Electronic ignition system simplifies the startup process and eliminates the need for a pilot light
  • Electronic diagnostic gas valve monitors system performance
  • Rated for installations up to 10,100 ft.
  • Wi-Fi compatible with the purchase of Rheem EcoNet home comfort Wi-Fi module (sold separately) for gas water heaters (Wi-Fi model # REWRA631GWH)
  • Designed for easy replacement of your existing water heater
  • Call 1-855-400-2552 before noon for same-day service in most areas, or Visit our Water Heater Installation page for more information.



  • Meets 2015 NAECA standards



  • Click here for more information on Electronic Recycling Programs
  • California residents see Prop 65 WARNINGS

Info & Guides

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Info & Guides

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Name Performance Platinum 40 Gal. Tall 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater Performance Platinum 40 Gal. Short 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater Performance Platinum 50 Gal. Short 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater Performance Platinum 40 Gal Short 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater with WiFi Module Included
Brand Rheem Rheem Rheem Rheem
Ratings (521) (467) (520) (18)
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Specifications

Dimensions

Product Depth (in.)
21.75
Product Height (in.)
50.5
Product Width (in.)
21.75
Tank Valve Size (in.)
.75
Water Connection Size (in.)
.75

Details

Application Type
Residential
Finish Family
Gray
Fuel Type
Gas
Gas Type
Natural Gas
Indoor/Outdoor
Indoor
Maximum Temperature (F)
160
Minimum Temperature (F)
45
Nominal Tank Capacity (gallons)
40
Product Weight (lb.)
140lb
Rated Tank Capacity (gallons)
39
Recovery Rate at 90F Rise (gallons/hour)
40.4
Returnable
90-Day
Tank Lining Material
Glass
Tank Warranty
12 Year
Uniform Energy Factor
0.65
Water Heater Features
LoNox,Overheat Protection,Self Cleaning,Temperature Pressure Relief Valve
Water Heater Profile
Short

Warranty / Certifications

Certifications and Listings
CSA Certified,FVIR Certified
Labor Warranty
3 Year
Part Warranty
12 Year

Specifications

Dimensions

Product Depth (in.)
21.75
Product Height (in.)
50.5
Product Width (in.)
21.75
Tank Valve Size (in.)
.75
Water Connection Size (in.)
.75

Details

Application Type
Residential
Finish Family
Gray
Fuel Type
Gas
Gas Type
Natural Gas
Indoor/Outdoor
Indoor
Maximum Temperature (F)
160
Minimum Temperature (F)
45
Nominal Tank Capacity (gallons)
40
Product Weight (lb.)
140lb
Rated Tank Capacity (gallons)
39
Recovery Rate at 90F Rise (gallons/hour)
40.4
Returnable
90-Day
Tank Lining Material
Glass
Tank Warranty
12 Year
Uniform Energy Factor
0.65
Water Heater Features
LoNox,Overheat Protection,Self Cleaning,Temperature Pressure Relief Valve
Water Heater Profile
Short

Warranty / Certifications

Certifications and Listings
CSA Certified,FVIR Certified
Labor Warranty
3 Year
Part Warranty
12 Year

Questions & Answers

Does this model XG40S12DM40U0 use the electronic ignition or does it have a standing pilot light...

Does this model XG40S12DM40U0 use the electronic ignition or does it have a standing pilot light? I seeing conflicting info. The User Manual uses the word 'pilot' somewhat ambiguously but the Home Depot description indicates electronic ignition. Which is it?
Asked by: Tim
I believe it does not have a pilot light as I did not see one at the bottom. There is an electronics ignition device (white box) in the front that also adjusts temperature. I do know the unit even though is a gas unit does need 120VAC outlet to power the damper at the top which opens and closes electrically. The unit comes with a cord about 15 ft long.
Answered by: pgreen
Date published: 2018-09-14

does this qualifies for energy star rebate program?

does this qualifies for energy star rebate program?
Asked by: Libertador
Yes.
Answered by: Peter
Date published: 2018-09-11

can I hard wire this?

can I hard wire this?
Asked by: oli
You need to have 110 volt receptacle within reach of the attached transformer that will reduce the power from 110 volts to 24 volts.
Answered by: Peter
Date published: 2018-08-13

WHAT HAPPEN IF THE POWER GOES OFF, DOES THE HOT WATER HEATER STILL WORK?

Asked by: MILO
No, this unit has to have 120 volt to power the transformer for the control unit and the power draft valve... This Power draft valve opens and closes the air vent going out the exhaust/ flue pipe to hold in more heat. This valve opens fully before there is even ignition of the tank flame. There is no manual lighting with a match for this unit, all electronic!
Answered by: Rich
Date published: 2018-02-28
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Customer Reviews

Performance Platinum 40 Gal. Short 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater is rated 4.4 out of 5 by 467.
Rated 3 out of 5 by from Quality control wasn’t all that great. Once hooked up wouldn’t... Quality control wasn’t all that great. Once hooked up wouldn’t turn on. Had to call tech support and get out a multi-meter to take readings for the tech. Eventually got it working. Plug not put into its socket correctly. Only time will tell if the efficiency is worth it.
Date published: 2018-10-09
Rated 4 out of 5 by from So far it worked as I expected ... So far it worked as I expected
Date published: 2018-09-29
Rated 1 out of 5 by from Lasted a MONTH AND DIED Worked for a month after we put it in, then it died. No blinking statius light. Called Rheem, they are useless, I am a 2 hour drive from two of the largest cities in my state and they wolnt send anyone. Had a local company look at it, discovered the coard was dead. Just got the new cord on and its still not working
Date published: 2018-08-23
Rated 2 out of 5 by from Too soon to find out I bought this unit 2 days ago and still have a problem with installation. The unit doesn't start after connecting to power.
Date published: 2018-08-12
Rated 5 out of 5 by from Great unit I bought this unit almost two months ago and so far it has bin the best unit from all I have had. It was installed by licensed service without any issues and glitches. As per instruction booklet there is an option to control this unit from your smartphone, however that would require to purchase additional control device.
Date published: 2018-07-12
Rated 5 out of 5 by from This hot water heater was very easy to install. It took us about one hour and a half from start ... This hot water heater was very easy to install. It took us about one hour and a half from start to finish. I have had it for almost two months now, and so far we are very pleased with the unit. I purchased this water heater because of the longer warranty and of course the Star Energy efficiency. This heater should save us a couple of hundred each year. It also has a nice feature if we decide to buy and install the remote temperature controller.
Date published: 2018-03-20
Rated 5 out of 5 by from Works great! This hot water tank works great, so much better than our 17-year-old one. Plenty of capacity for two people showering at the same time. Best of all, you can buy a Wi-Fi for this and connect it to your smart home. It works with Nest so that when you're not home, it goes into Eco mode to save energy. Very cool!
Date published: 2018-03-09
Rated 5 out of 5 by from This water heater exceeded our expectations, we used it to... This water heater exceeded our expectations, we used it to replace a 21 old gas pilot water heater that worked VERY good and also exceeded its life expectancy and did not die until we turned it off. But what we like about this new Rheem is the AUTOMATIC way to turn itself without a pilot!!!
Date published: 2018-03-06
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