0020352625805

Rheem

Model XG40T12DM40U0

Internet #204318409

Store SKU #1000034937

Store SO SKU #1001020819

Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater

$678.00 /each
  • Provides ample hot water for households with 2-4 people
  • Make sure it fits: measure your space to ensure dimensions fit
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.

Frequently Bought Together

Product Overview

The Rheem Performance Platinum 38 Gal. Natural Gas Tall 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 residents: due to requirements from air quality management districts in the state of California, please use the map below to confirm whether you live in an area that requires the purchase of ultra low-NOx water heaters
  • Due to ultra low-NOx requirements from air quality management districts in the state of California, please confirm that your shipping zip code is not restricted from the use of items that do not meet local qualifications
  • 38 Gal. tank provides ample hot water for households with 2 to 4 people
  • Natural gas water heater costs less to operate than electric models
  • Delivers 73 Gal. 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
  • 0.69 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 Wifi 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
  • California Residents - See if your county requires water heaters that meet Air Quality Management District Ultra low NOx (ULN) requirements:

    Ultra low NOx Requirements

  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Customer Questions & Answers

17 Questions33 Answers

Customer Questions & Answers

Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater
Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater

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This question is from Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater
 
3 answers

Is it wise to replace the existing Anode Rod with an Aluminum Anode Rod before instlation to extend the life of the rod? Thanks for your responce.

This question is from Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater
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Utah
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June 21, 2016
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Asked by
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June 22, 2016
Answer: 
As the manufacturer we recommend the magnesium anode rod. Both are weaker metals than the steel tank and will sacrifice themselves. With routine maintenance and inspection either should work well if replaced if needed. I hope this answers your question. We have technical documents available on anode rods at www.rheem.com if you are interested.
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Asked by
Joliet IL
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June 22, 2016
Answer: 
No need it already come with a premium grade anode rod.
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Asked by
Clinton Township
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Home Improvement Profile: DIYer
June 22, 2016
Answer: 
I don't know. Ask Home Depot or Rheem about this question. Sorry.
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This question is from Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater
 
3 answers

What does indoor and outdoor mean?

This question is from Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater
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May 30, 2016
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Asked by
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Home Improvement Profile: Other
June 28, 2016
Answer: 
Indoor - Outdoor is one or the other.
There is no indoor OR outdoor.
All the tanks with a round vent at the top for an exhaust pipe are indoor only!
The Tankless with NO round vent at the top, but have open slits at the top of the front panel are outdoor only.
They will be clearly labeled as indoor or outdoor.
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Asked by
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June 27, 2016
Answer: 
The venting on the units is the main difference. An indoor unit has to be installed indoors and an outdoor unit needs to be installed outdoors due to venting.
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May 31, 2016
Answer: 
This means it can be used indoor or outdoor.
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This question is from Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater
 
3 answers

Does it need 110 outlet?

This question is from Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater
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Holly Hill, FL
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December 14, 2015
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Asked by
Colorado
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Home Improvement Profile: Other
June 28, 2016
Answer: 
Yes, a normal wall socket of 110 volt is needed to run the Honeywell controller.
It's actually a 12v transformer that you are plugging in with several feet of wire to connect the controller on the tank.
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Asked by
Texas
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Home Improvement Profile: DIYer
December 22, 2015
Answer: 
Tes - this unit utilizes a 110v power source for ignition. It will not run without the 110 power being plugged in. The cord is REALLY long. With that said, I would recommend having an electrician install an outlet near the unit to ensure the cord never gets accidentally unplugged.
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Asked by
Twin Cities MN
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December 17, 2015
Answer: 
I bought mine at Home Depot, and discussed various models before purchasing this one.This unit requires 110v AC- it has electronic ignition and a powered damper.
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This question is from Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater
 
3 answers

Is this direct vent?

This question is from Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU ENERGY STAR Natural Gas Water Heater
Asked by
Seattle, WA
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July 26, 2015
I have a 90' vent mounted on top and cannot tell if this has same functionality
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Asked by
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December 14, 2015
Answer: 
No this model is not a direct vented unit. This unit is a standard atmospheric with an electrical damper on the top of the unit.
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Asked by
Thornton, CO
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August 21, 2015
Answer: 
No, this is a standard vent unit which uses a single wall pipe. Direct vent units will use a double wall pipe (2 pipes within 1 pipe), or two separate pipes.
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Asked by
florida
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July 28, 2015
Answer: 
I'm probably not you best form of info on direct venting. The way i understand direct venting is that fresh air is brought in from out side threw a double wall piping,used to handle both exhaust and intake. I can only tell you that this unit intakes air from the bottom and exhaust out the top. I used my old venting pipe,witch directs venting up threw the roof. It was a little tough to reshape as the new Read More
I'm probably not you best form of info on direct venting. The way i understand direct venting is that fresh air is brought in from out side threw a double wall piping,used to handle both exhaust and intake. I can only tell you that this unit intakes air from the bottom and exhaust out the top. I used my old venting pipe,witch directs venting up threw the roof. It was a little tough to reshape as the new unit was taller . Read Less
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Customer Reviews

Rated 4.3 out of 5 by 162 reviewers.
Rated 5.0 out of 5.0 by Replaced older failed water heater Instructions straight forward. Qualified for a $100 rebate. Added a expansion tank at the same time. June 14, 2016
Rated 5.0 out of 5.0 by Excellent Water Heater I've only had mine for one week, so if I don't update, it means it is still working perfectly. I replaced a 50 gal, 50,000 btu tank that served me well for many years. So as this one is a 40,000 btu heating only 38 gallons with new heating technology, I would say that is is about 3x (300%) faster than my old water heater. Very impressive! I am hoping the Honeywell controller will outlast the tank itself; the electronic controller is very easy to use compared to the old manual controller, and the thermocouple that would seem to go out at the worst of times. So I will leave this with 5 stars and will only update if there is a problem. June 27, 2016
Rated 5.0 out of 5.0 by Nice water heater I installed this a couple weeks ago myself. No problems with install at all. It is a little taller and a couple inches fatter than my old 40 gallon heater. I had to redo the plumbing and it barely fit into the hole the old one came out of. Otherwise no problems. I got a $100 rebate from my gas company, so spending they extra $30 over the cheaper model saved me money on the cost and will save me about $20 per year. August 23, 2016
Rated 4.0 out of 5.0 by Nice The wi-fi feature is excellent. Gives up to date info. August 30, 2016
Rated 5.0 out of 5.0 by Works really well. Really happy with this purchase. We replaced a water heater that was 10 years past when it should have been replaced. While this is only 39 gallons, we have 5 people staying in our house right now and haven't had any issues with having enough hot water. August 9, 2016
Rated 5.0 out of 5.0 by Quality item and easy to install I purchased two of the same model this year, as both water heaters in my home were 20 years old. The energy savings was noticeable the first month, AN I had more hot water volume - an unexpected benefit. It appears my old hot water heaters were filled with silt from years of use. One thing you need to plan for, if you are replacing an existing gas water heater, is that this unit will require a 110v outlet. This isn't a big deal, but you need to know BEFORE you install it, or you will not be able to fire it up. December 22, 2015
Rated 2.0 out of 5.0 by Not a goog quality heater - don't buy I got this heater and had professionally installed. Within two months, heater stopped working due to gas valve failure. Since it is under warranty, I could get it fixed but very poor service from Rheem. You have to go through them and good luck with getting attention. I called 5 times and you get different answer each time. The parts are not available in Houston area so you have to rely on them. I don't know what will happen after 1 year when the warranty runs out. Poor quality product from Rheem - which I did not expect. It took them 7 days to get it fixed - very bureaucratic process in place. My previous heater lasted 16 years with no issue. I would not recommend this or any other Rheem product. June 22, 2016
Rated 4.0 out of 5.0 by Nice Hot Water Heater Heavy! Have a friend to help carry it up stairs. Installed ok, I wish that inlet and outlet lines were not 180 degrees. It is too soon to tell if we will save money with this hot water heater. July 6, 2016
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