Rheem Performance 40 gal. Tall 6 Year 36,000 BTU Natural Gas Water Heater-XG40T06EC36U0 - The Home Depot
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Model # XG40T06EC36U0

Internet # 204298976

Store SKU # 1000034924

Performance 40 gal. Tall 6 Year 36,000 BTU Natural Gas Water Heater

Rheem Performance 40 gal. Tall 6 Year 36,000 BTU Natural Gas Water Heater

This item has been discontinued.
The Home Depot no longer carries this specific product.

$329.00 / each
  • 40 gallon tank provides ample water for 2-4 people.
  • Maintenance-free air intake system, no filters needed.
  • Same-day installation in most areas. Call 888-988-9935 by noon.


Model # XG40T06EC36U0

Internet # 204298976

Store SKU # 1000034924

The Rheem Performance 40 gal. Natural Gas Tall Water Heater comes with a 36,000 BTU/hour environmentally friendly Low-Nox burner that provides ample hot water for households with two to four people. The push button ignition system ensures safe and easy startup. Its maintenance free combustion air intake system means there are no filters to clean and replace. The self-diagnostic gas control valve monitors system performance. 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.

  • 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
  • Natural gas water heater costs less to operate than electric models
  • Delivers 67 gal. of hot water in the first hour
  • 6 year limited warranty on tank and parts for your convenience
  • 1 year in home labor warranty for peace of mind
  • Meets or exceeds NAECA requirements
  • Push button ignition system simplifies the startup process
  • Self-diagnostic gas valve monitors system performance
  • Rated for installations up to 10,200 ft.
  • Narrow tank profile fits in a variety of indoor spaces
  • Energy factor 0.59
  • Want it installed? Call 888-988-9935 before noon for same-day service in most areas, or visit our Water Heater Installation page for more information.
  • California Residents - See if your county requires water heaters that meet Air Quality Management District Ultra Low NOx (ULN) requirements:

    Ultra Low Nox Requirements

Info & Guides

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Assembled Depth (in.) 
17.75 in 
Assembled Height (in.) 
62 in 
Assembled Width (in.) 
17.75 in 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Tank Valve Size (in.) 
Vent diameter (in.) 
Water Connection Size (in.) 
Application Type 
Automatic Shut-off 
Finish Family 
Fuel Type 
Gas Connection Size 
Gas Type 
Natural Gas 
Maximum Temperature (F) 
Minimum Temperature (F) 
Product Weight (lb.) 
120 lb 
Recovery Rate at 90F Rise (gallons/hour) 
Tank Capacity (gallons) 
Total BTU 
36000 Btu 
Vent Type 
Single Wall 
Water Connection Location 
Water Heater Features 
LoNox,Overheat Protection,Pilot Light Window,Pilot Reset Button,Temperature Pressure Relief Valve 
Water Heater Profile 
Warranty / Certifications
Certifications and Listings 
CSA Certified,FVIR Certified 
ENERGY STAR Certified 
Labor Warranty 
1 Year 
Part Warranty 
6 Year 


Rated 4.5 out of 5 by 609 reviewers.
Rated 5.0 out of 5.0 by Best 40 gallon gas hot water heater for the price! Rheem's new energy efficient hot water heater has helped reduce our water bill costs. It is sleeker and required less space. The water is hotter and reaches its destination faster. It stopped our leak and is saving us a lot of money over time. Don't wait until your old hot water heater quits on you, I promise you won't regret it! Best decision we ever made! February 21, 2015
Rated 1.0 out of 5.0 by dissappointed. had to return and replace 28 days after installation.pilot light would not stay lit. hopefully the first one was a lemon, and not it"s replacement. September 24, 2014
Rated 5.0 out of 5.0 by Easy, Straighforward Install & Water Heater Working Great So Far.... Our old water heater went out Saturday (no warning, just kaput -- woke up to cold water showers and wet garage floor) and on a weekend (never fails) so we had a few days of cold showers, etc. It lasted 14 years and had a 5 year warranty, so I guess it was long overdue to die. At first I was thinking we'd need a pro install and that is M-F I believe (ended up installing myself however on Mon. aftn.)....so during weekend, I went online and checked out lots of brands, Rheem came up shining in the customer reviews department. So on Monday morning I went to the Home Depot nearby and chose this one.... It was in my garage waiting for me when I got home from work (wife took free delivery) and I installed it same afternoon. I would have done this the day the old water heater died but I was thinking I'd need a pro installation at the time, not having confidence to do it myself at first. As it turned out, the whole install took about 2 hours (have done a few projects, but not an expert DIYer by any estimation) with the instructions being very detailed and straighforward (mostly involves reading the inst. thoroughly and being sure to attach all the connections properly. I had a bit of concern since I have never installed a water heater before but forged ahead and everything went fine..... it is heating away as I type. There was warm water within an hour and it was actually too hot later in the evening (temp dial was at about 3/4 of the way up to heat the first fill of water) so I turned it down 2 notches before bed ...and it was still plenty hot for showers next morning and dishwashing and one hot load of laundry. I would recommend this water heater and I will update if anything changes, but so far it is chugging away and heating great (see my post-installation pictures attached) So, bottom line, don't be afraid, just read the instructions thoroughly (very detailed) and you'll be fine. If I can do it anyone can. July 1, 2014
Rated 4.0 out of 5.0 by Very nice for price I bought this product just a few days ago and it has been a dream so far. I had looked at Lowe's to get them to install a whirlpool model but after reading the reviews I decided to get Rheem instead. I have never installed anything like this in my home and it took about two hours from start to finish to get the product in and going. Since then the pilot light has never went out and the hot water is delivered as promised. Good luck with your shopping. I would recommend this purchase for the ease of install, the price, and the quality. February 18, 2015
Rated 5.0 out of 5.0 by Very happy customer just installed this as a replacement to a 15 year old that was leaking and not heating well at all!! night and day difference. installed as DIY and no problems except of course it was 4" higher which meant cutting of copper and gas pipes. ( I have a plumber brother) so it was not a problem for me. took 2 1/2 hours including another run to Home Depot for female tank adapters. I had to turn down to the lowest setting and the water is still hot . the 67 gal per hour rate is true. a 40 gal tank that provides that kind of first hour hot water is awesome. Very Very happy!!! April 7, 2015
Rated 5.0 out of 5.0 by Works great so far. I installed this myself about 3 days ago. So far, it seems to be working great. It does not cycle on nearly as much as my old water heater. I did swap out the cheap plastic drain valve that comes factory installed with a brass valve. If I have any problems, I will update this post, but overall it seems to be a good buy. May 29, 2014
Rated 1.0 out of 5.0 by Don't be fooled by the positive reviews Obviously my water heater failed and I went online to research a good brand and this model showed up. So the next day I have it installed and the Pilot light won't work. I called Home Depot and they said bring it back and we will get you another one. Hard to do when it's been professionally installed. I called Rheem and after their troubleshooting script that they read off of failed they said they would send me another part. I've been without hot water for days now and I can guarantee you I will never buy this product again. It takes a day and a half to ship additional parts and oh, I have to call the plumber guy to install it at my cost. Fantastic!!! February 7, 2015
Rated 1.0 out of 5.0 by Not even enough hot water for one shower Took my less than 90 minutes to remove the old GE gas water heater and install this one. Thought I was OK until we started taking showers. I get maybe a couple minutes before I have to start adjusting my mixer in the shower, and after about 4 min the hot water is gone completely. And that's only ONE shower. What the heck? Every different temp adjusment to see if it was just between heating cycles but no dice. Tried to do online chat w/ HD and waited several minutes while associate was busy then it changed to "no available Associates to interact with you - Please try again later." Not happy. March 10, 2015
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Store Exclusive. This item is available for purchase in select stores only.