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Internet # 326590312

Model # XG40S06EC34U0

Store SKU # 1001300161

Performance 40 Gal. Short 34,000 BTU Natural Gas Water Heater with 6-Year Warranty

$599.00
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  • Short profile design for installation in height-restricted spaces
  • 40-Gallon tank provides hot water for households with 2-4 people
  • Restricted in CA, UT, and CO – see disclaimer below
  • View More Details

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Product Details

About This Product

The Rheem Performance 40 Gal. Natural Gas Short Water Heater comes with a 34,000 BTU/hour environmentally friendly low NOx burner that provides ample hot water for households with 2-people to 4-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. 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.

Highlights

  • California, Utah, and Colorado residents (colorado effective 1/1/2026): 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
  • 40 Gal. tank provides ample hot water for households with 2-people to 4-people
  • Natural gas water heater costs less to operate than electric models
  • Delivers 64 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
  • Maintenance free - no filter to clean or replace
  • Push button ignition system simplifies the startup process
  • Now features a brass drain valve for added resiliency and durability
  • Rated for installations up to 5,999 ft.
  • Short tank profile fits in a variety of indoor spaces
  • 0.58 uniform energy factor indicates an energy efficient water heater
  • Call 1-855-650-2786 before noon for same-day installation service in most areas or visit our water heater installation page for more information
  • Meets 2015 NAECA standards
  • Call 1-855-650-2786 before noon for same-day installation service in most areas or visit our water heater installation page for more information
  • Meets 2015 NAECA standards
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 326590312

Model # XG40S06EC34U0

Store SKU # 1001300161

Specifications

Dimensions: H 49.25 in, W 21 in, D 21 in

Dimensions

Product Depth (in.)

21 in

Product Height (in.)

49.25 in

Product Width (in.)

21 in

Water Connection Size (in.)

3/4 in

Details

Application Type

Residential

BTU Rating

34000

Efficiency Level

High

First Hour of Delivery (gallons/hr)

64

Fuel Type

Gas

Gas Connection Size

1/2 in.

Gas Type

Natural Gas

Household Size

2-4

Indoor/Outdoor

Indoor

Nominal Tank Capacity (gallons)

40 gal

Product Weight (lb.)

120 lb

Returnable

90-Day

Tank Warranty

6 Year

Uniform Energy Factor

0.58

Vent Type

Atmospheric

Water Heater Features

Overheat Protection, Pilot Light Window, Pilot Reset Button, Temperature Pressure Relief Valve

Water Heater Profile

Short

Water Heater Type

Gas

Warranty / Certifications

Certifications and Listings

CSA Certified, FVIR Certified

Part Warranty

6 Year

Questions & Answers

If it has electronic ignition, how can it not need power?
ByJan 20, 2026
1 Answer | 
Answer This Question

A long life battery supplies power. I own a similar unit and after 10 years battery is still working.

By|Jan 21, 2026
    0/0


    Can this tank be used in a mobile home
    ByJan 16, 2026
    1 Answer | 
    Answer This Question

    Hi Alicia, Based on the information you have provided, this model is not configured for usage in a manufactured home. Derius

    By|Jan 22, 2026
      0/0


      How much does this water heater weigh
      ByJan 6, 2026
      1 Answer | 
      Answer This Question

      Hi Susan, The Performance Plus 40‑gallon short atmospheric gas model weigh in the range of: ≈ 130–150 lbs (empty). Derius

      By|Jan 19, 2026
        0/0

        (1)

        This look taller then my 30gal short sit in a cabin in my kitchen how would they make it work
        ByJan 2, 2026
        1 Answer | 
        Answer This Question

        Hi Andre, Here’s the good news: the XG30S06EC30U1 is a short model, but it may still be taller than the older 30‑gallon short heater you installed years ago. That’s normal, modern heaters are often a few inches taller because of updated insulation and efficiency standards. Installers deal with this all the time. Depending on the installer they may adjust the venting and plumbing so it fits in the same kitchen location in your cabin. Derius

        By|Jan 6, 2026
          0/0


          How do I register my newly purchased water heater for the 9 year warranty?
          ByJan 1, 2026
          1 Answer | 
          Answer This Question

          Hi Jeff, For assistance with warranty registration, please call 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. Derius

          By|Jan 1, 2026
            0/0


            How wide is this unit
            ByDec 31, 2025
            1 Answer | 
            Answer This Question

            Hi Jimmy, Model: XG30S06EC30U1 Type: 30‑gal Short, Natural Gas Width/Diameter: 19 in. Derius

            By|Jan 1, 2026
              0/0


              How tall is this
              ByDec 21, 2025
              2 Answers | 
              Answer This Question

              46.25 inches

              By|Dec 25, 2025
                0/0

                Hi Rudy, The Performance Plus 40‑Gal SHORT natural‑gas water heater has a height of: 50.25 inches tall. Derius

                By|Jan 17, 2026
                  0/0

                  (1)

                  Need 20inch diameter water heater
                  ByDec 15, 2025
                  1 Answer | 
                  Answer This Question

                  Hi Fran, The Performance 40 Gal. Short Natural Gas Water Heater (Model XG40S06EC34U0) has a diameter of about roughly 21 inches, not 20 inches. Derius

                  By|Dec 16, 2025
                    0/0


                    Viewing 1-8 of 159

                    Customer Reviews

                    4.4 out of 5

                    • 4.4 out of 2,574 reviews
                    • 77% recommend this product
                    Filter by:
                    Showing 1-10 of 2,574 reviews
                    Hot water tank need replaced
                    I purchased this hot water tank on 2/8/22 and it has started leaking from bottom already. I called RHEEM and they recommended that it must be replaced. You do the math it's now 1/10/26 didn't even last 4yrs yet. Luckily it still under warranty for the replacement but please note the warranty begins with the manufacturer date on the tank NOT THE DATE YOU PURCHASE IT.. now I have to pay they plumber to take it out and install a new one.. they don't make tanks they last 10-20yrs no more.
                    by
                      Works great so far. Delivery was very fast which was helpful. I appreciate the shorter size for my utility closet.
                      by
                      Works perfectly! No more questions, thanks Rheem!!!
                      by
                      Old Rheem water heater tank went out after 4 years, but warranty doesn't transfer to new homeowner so had to just buy a new one. Works great, water is nice and hot even on the first setting and seems to keep up with our demand just fine. I bought this because it was the exact same size and connections as the previous one so install was super easy. Here's hoping it lasts longer than the previous one. Service in store was excellent.
                      by
                      PASS ON RHEEM
                      This water heater will last you 7 years. It will die after the 6 year warranty expires. How do I know? because im shopping for a new one and it aint going to be from Rheem. Kicker is, I haven't even had it long enough for it to collect dust yet, its spotless, like i just bought it the copper is still shiny!
                      by
                        Installation was successful. I was in a tight spot. The diameter of water heater just fit, old heater diameter was 20” and with new Rheem diameter of 21” it just fit in place.
                        by
                        • Verified Purchase
                        1 found this review helpful
                        This customer chose to rate the product and not provide text.
                        by
                        • Verified Purchase
                        The installer that Home Depot used would not come to my area after they scheduled the appointment. Then they wanted to charge $2600 - $3000 dollars for the service.
                        by
                        Response from RheemSep 18, 2025
                        That’s really disappointing, Jamie.

                        Scheduling an appointment only to back out, and then quoting such a high price, is frustrating and unfair. Thanks for sharing your experience; to better assist you with this issue, please contact HomeDepot.com customer service department at 1-800-466-3337 any day between 6 A.M and 2 A.M. EST. Home Depot Customer Service will be able to assist you with this issue or transfer you to your local store for more assistance.

                        Derius rheem
                        • Verified Purchase
                        6 years and leaking already
                        This will be the last Rheem hot water heater I buy. Had a brand new one installed barely 6 years ago and it started leaking this morning. Of course warranty was up last month but what kind of water heater dies after 6 years. Our last one was 10 years old when we moved in and last almost another 10. Piece of junk
                        by
                        Response from RheemJul 8, 2025
                        Hi PaulH,

                        Based on the email address you provided, it looks like our team recommended the replacement of your water heater on July 1st. If you need additional assistance, please call Technical Support at 866-279-4566 between the hours of 7 A.M. and 7 P.M. CST. One of our experienced analysts will be happy to help you.

                        Thank you,
                        Jennifer rheem
                          Good thank and very easy to install.
                          by
                          Response from RheemJul 8, 2025
                          Thanks for the 4-star review!

                          Jennifer rheem
                          Showing 1-10 of 2,574 reviews

                          Compare Key Features

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                          Product Snapshot

                          Ideal for households with 2-4 people looking for an energy-efficient gas water heater . This 40-gallon model boasts a 6-year warranty and delivers 64 gallons of hot water in the first hour ..
                          Ideal for customers who want an energy-efficient gas water heater, ensuring lower operating costs and a reliable hot water supply.
                          Ideal for households with 2-4 people looking for an energy-efficient gas water heater, ensuring ample hot water.
                          Ideal for homeowners looking for energy efficiency, this heater ensures ample hot water for 3-5 people with its 40, 000 BTU output and a 12-year warranty.

                          Tank Capacity

                          40 gal
                          40 gal
                          39 gal
                          50 gal

                          Recovery Rate

                          34.3
                          34.4
                          68 gal/hr
                          40.4

                          Burner Output

                          34000
                          34000
                          38000 BTUs
                          40000

                          Warranty Period

                          6-Year
                          3-year limited warranty on tank and 1-year limited warranty on parts
                          6-Year Limited
                          12 Year

                          Smart Connectivity