ProLine® 40-Gallon Electric Water Heater

Model EN6-40-DORS 110
4.8 out of 5 Customer Rating
ProLine® 40-Gallon Electric Water Heater is rated 4.7 out of 5 by 603.
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Capacity (Gallons)
Limited Tank Warranty
Height Classification
Blanket
First Hour Rating

  • Steady Hot Water—Delivers 55 gallons of hot water in the first hour
  • Durable Heating Elements—Dual 4,500-watt commercial-grade heating elements deliver reliable and efficient hot water
  • Sturdy Build—Long-lasting lower Incoloy™ stainless steel element
  • ProLine® 40-Gallon Electric Water Heater
    Model EN6-40-DORS 110
    4.8 out of 5 Customer Rating
    ProLine® 40-Gallon Electric Water Heater is rated 4.7 out of 5 by 603.
    • y_2026, m_3, d_31, h_9
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    • co_hasreviews, tv_126, tr_477
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    Product Details
    • Steady Hot Water—Delivers 55 gallons of hot water in the first hour
    • Durable Heating Elements—Dual 4,500-watt commercial-grade heating elements deliver reliable and efficient hot water
    • Sturdy Build—Long-lasting lower Incoloy™ stainless steel element
    • HUD Compliant—Approved for use in mobile homes/manufactured housing
    • Corrosion Protection—Patented Blue Diamond® glass tank lining protects against corrosion
    • Auto-Cleaning Feature—DynaClean™ automatic cleaning system protects against sediment build-up
    • Long-Lasting Anode—Stainless steel CoreGard™ anode rod protects against corrosion longer than ordinary anodes
    • Simple Drainage—Commercial-grade brass drain valve for durable and easy operation
    • Factory-Installed Relief Valve—CSA certified and ASME rated T&P relief valve is factory-installed
    • Peace of Mind—6-year limited tank and parts warranty for added peace of mind

    • The State ProLine® Standard Electric water heater is the reliable choice when you want to maximize hot water output and energy savings. The EN6-40-DORS incorporates a 40-gallon (nominal) tank and 4,500 watts to deliver a first hour rating of 55 gallons at a Uniform Energy Factor of 0.92.

      Environmentally-friendly insulation and factory-installed heat trap nipples reduce heat loss to optimize energy savings.

      Featuring State's advanced tank protection, this ProLine® water heater includes a stainless steel CoreGard™ anode rod, Blue Diamond® glass lining and DynaClean™ automatic sediment-cleaning—designed to help protect the tank from the corrosive effects of water and extend the life of the water heater. The EN6-40-DORS includes a 6-year limited tank warranty.

      State ProLine® water heaters are residential products built to commercial-grade standards and are only available for purchase through professional wholesalers and contractors.

    Specifications
    Tech Specs
    Nominal Gallon Capacity
    40 Gallons
    Rated Storage Volume
    37 Gallons
    UEF
    0.92
    Power Source
    ELECTRIC
    Limited Tank Warranty
    6 Years
    Limited Parts Warranty
    6 Years
    T&P Relief Valve
    Yes
    Water Connection Location
    TOP
    Water Connection Size
    0.75"
    Emissions
    Low NOx
    First Hour Rating
    55 Gallons
    ASME Certified
    No
    Blanket Included
    No
    Destination Country
    US
    Height to T&P
    40.75
    Installation Type
    INDOOR
    Max Wattage
    4,500
    Number of Elements
    2
    Application
    RESIDENTIAL
    Shipping Height 
    53.63
    Shipping Length 
    23.69
    Shipping Width 
    21.5
    Side Loop
    No
    Voltage
    240
    Dimension & Venting
    Type
    Water Heater
    Height
    49.75"
    Diameter
    20.5"
    Width
    20.5"
    Shipping Weight
    98 lbs
    Maintenance & Troubleshooting
    Maintenance

    Electric - Adjusting the Thermostat

    Electric - Checking and Replacing Lower Heating Element

    Electric - Checking and Replacing Upper Heating Element

    Electric - Not Enough Hot Water

    Electric - Replacing the Lower Thermostat

    Electric - Replacing the Upper Thermostat

    Troubleshooting

    Electric - No Hot Water

    Electric - Tripped ECO

    Marketing Videos
    Electric - Application and Installation
    Electric - Features and Benefits
    Electric - How It Works
    All Reviews for ProLine® Standard Electric (110 series)
    Rated 5 out of 5 by from It’s a water heater!! What more can I say? My old water heater began leaking. I contacted Lowe’s companies because I have had them do installation sales for me in the past. Their contractor, ARS/RESCUE ROOTER was the contractor assigned to replace my old water heater. Great product. Only had it for less than a week, but so far, it’s doing exactly what it was purchased for.
    Date published: 2024-06-03
    Rated 5 out of 5 by from Great Moved into new home, Great water heater works good
    Date published: 2024-05-25
    Rated 5 out of 5 by from Amazing product This is an awesome product! I would recommend this water heater to anyone.
    Date published: 2024-05-12
    Rated 5 out of 5 by from My water heater was leaking. I called and got a quick response and they came right away. And was able to change it out.
    Date published: 2024-04-20
    Rated 5 out of 5 by from bought this product 2 days ago and very happy with the quality of the water heater
    Date published: 2024-04-19
    Rated 5 out of 5 by from I really so happy with my new water heater I recommend to buy this product quality of product is 100%
    Date published: 2024-04-01
    Rated 5 out of 5 by from Looks and works great I bought this item a couple of weeks ago and so far it has performed perfectly and looks great.
    Date published: 2024-03-25
    Rated 5 out of 5 by from Great product for a decent price. Bought this water heater and had it installed in about 2 hours. It’s quiet and works like a champ. We replaced our old State water heater after 16 years. It never leaked. A great company that makes great products.
    Date published: 2024-03-17
    Rated 5 out of 5 by from Great features I bought this water heater and so far I am very happy with it.
    Date published: 2024-02-23
    Rated 5 out of 5 by from Works I purchased today. Shane - Valor Plumbing installed and recommended the product. Very happy so far.
    Date published: 2024-02-16
    Rated 5 out of 5 by from Seems to work well This was the recommended model and we have no complaints so far!
    Date published: 2024-02-05
    Rated 5 out of 5 by from Replacement for a Previous State Water Heater Product is only 4 days old. Works great. This unit replaced a previous State water heater that served me flawlessly for 15 years. The water heater I replaced did not fail. I replaced it because as a REALTOR I routinely found that 15 years was the normal life expectancy for water heaters. I'm convinced this one is of equal or better quality than the one I replaced.
    Date published: 2024-01-30
    Rated 5 out of 5 by from Works Beautifully Hot water is available immediately and I love the size of the tank for our home.
    Date published: 2024-01-20
    Rated 5 out of 5 by from Ease of Installation Great unit for a one for one replacement. Easy one man installation. Running for for two weeks with no issue.
    Date published: 2024-01-07
    Rated 5 out of 5 by from Functions very well so far I've been using this water heater for a month now with no issues at all. Water is hot and lasts as long as needed! There's only one person in my household, but I'm confident it would still work for several people to take showers, etc.
    Date published: 2024-01-04
    Rated 5 out of 5 by from Good features I have only had it a couple of weeks, so far so good
    Date published: 2023-12-26
    Rated 5 out of 5 by from Fantastic functioning This is an incredible water heater. Water heats in seconds!!
    Date published: 2023-11-06
    Rated 5 out of 5 by from Works great! Bought it 7 months ago, works great, looks nice too.
    Date published: 2023-11-04
    Rated 5 out of 5 by from This is my first State Water heater and I have heard good reviews
    Date published: 2023-10-22
    Rated 5 out of 5 by from great feature So far its working very well and I'm very happy with it.
    Date published: 2023-10-19
    Rated 5 out of 5 by from Problem Free Needed a new water heater as old one was way past due replacement. Have had no problems, looks easy to drain for lime buildup. Don't know if it's more energy efficient, but I'm happy with it.
    Date published: 2023-10-15
    Rated 5 out of 5 by from Vey slim and compact Amazing product very Super reliable. Love that its not huge like other water hearter.
    Date published: 2023-10-09
    Rated 5 out of 5 by from New water heater Very well built ! Heats up the water quickly. We Love it.
    Date published: 2023-09-22
    Rated 5 out of 5 by from It really gets the water hot We had this hot water heater installed earlier this month, and we love it.
    Date published: 2023-09-20
    Rated 5 out of 5 by from Exceeds Expectations! Top quality product, great warranty, reasonable price and excellent performance!
    Date published: 2023-09-18
    Rated 5 out of 5 by from So far so good. Two days here and it still works. Talk to me two months from now and I may tell you more.
    Date published: 2023-09-17
    Rated 5 out of 5 by from Great features! Highly recommended by our plumber, who is also a best friend. Trust his opinion!
    Date published: 2023-09-08
    Rated 5 out of 5 by from An OUTSTANDING product I have used State Water Heaters for years in my home. Keep up the great work.
    Date published: 2023-09-04
    Rated 5 out of 5 by from Great product. It’s effective and gets the job done properly.
    Date published: 2023-09-04
    Rated 5 out of 5 by from State - ProLine Electric Tank Water Heater EN6-40 Called Roto Rooter of Sherwood Ar, and within just a few hours our New Water Heater was installed and the old one taken away. Special Thanks out to Zack for a professional install and making sure the unit did not leak and hot water was supplies as told.
    Date published: 2023-08-11
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