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 584.
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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 584.
    • y_2025, m_10, d_29, h_4
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
    • cp_6, bvpage2n
    • co_hasreviews, tv_120, tr_464
    • loc_en_US, sid_en6-40-dors-110, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
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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 I've only had it a few days and am very satisfied with it so far.
    Date published: 2021-07-08
    Rated 5 out of 5 by from Evidently my hot water heater was dying slowly. I have not had this temperature of hot water in quite some time!
    Date published: 2021-05-27
    Rated 5 out of 5 by from It is so quiet I am very pleased with the product, no more running out of hot water
    Date published: 2021-05-17
    Rated 5 out of 5 by from EXCELLENT PRODUCT I purchased this ProLine Water Heater about a month ago and so far I have had no problems with this product.
    Date published: 2021-05-17
    Rated 5 out of 5 by from 50 gallon Friend who is a plumber recommended this brand as he installs them all the time. So far so good. Electric bill has been lower and water is hot
    Date published: 2021-04-30
    Rated 5 out of 5 by from Solid Components I have always been a State water customer. They are reliable and in my experience hold up over time.
    Date published: 2021-04-24
    Rated 5 out of 5 by from I BOUGHT THIS WATER HEATER 2 MONTHS AGO AND SO FOR SO GOOD
    Date published: 2021-04-23
    Rated 5 out of 5 by from Great features Great features. Very happy with product. quality product
    Date published: 2021-04-19
    Rated 5 out of 5 by from Great Safety Features Installed 4 days ago, so far there are no issues or complaints.
    Date published: 2021-04-05
    Rated 5 out of 5 by from Works great Great product & the service tech was very professional.
    Date published: 2021-04-03
    Rated 5 out of 5 by from Easy to install I bought this model to replace the State water heater I put in 22 years ago! The old one I think anyone would agree did it’s job, so why not go back with what works! The blanket it came with is nice and makes for a nice clean job.
    Date published: 2021-03-28
    Rated 5 out of 5 by from purchased this unit several e weeks ago and it is really nice
    Date published: 2021-03-24
    Rated 5 out of 5 by from Great hot water We moved into our new house Oct. 1st. this is the first electric water heater that we've had in one of our homes. We have had no issues with temperature or quantity of hot water. I was a master plumber for 36 years and have used State water heaters most of those years. Excellent products.
    Date published: 2021-03-20
    Rated 5 out of 5 by from Owner All good at this time new owner moved in 2021 ********
    Date published: 2021-03-18
    Rated 5 out of 5 by from Hot water!!!! Loving it! Works great keeps the hot water coming even in our family of five with one teenager that lives in the shower!
    Date published: 2021-03-16
    Rated 5 out of 5 by from We are new homewoner, we let you know later about the equipment. I enjoining the hot water.
    Date published: 2021-03-11
    Rated 5 out of 5 by from Love it works great and looks good Been a good investment love the product works great
    Date published: 2021-03-09
    Rated 5 out of 5 by from Great Buy I bought this with my new Lennar house and I love it.
    Date published: 2021-03-09
    Rated 5 out of 5 by from Hot Water We've had only 3 days so it's performing as advertised.
    Date published: 2021-03-03
    Rated 5 out of 5 by from This is the second State electric proline water heater I have purchased. If this new one works as good as the old one it replaced, I'll be very pleased. I'm looking for a long and lasting problem free unit.
    Date published: 2021-03-02
    Rated 5 out of 5 by from 2 heaters in it, so I never run out of hot water. Even tho it has a bigger capacity than the old one, I didn't see any electric bill difference.
    Date published: 2021-02-17
    Rated 5 out of 5 by from GREAT! MORE EFFECTIVE, BETER FLOW OF WATER & LONG LATING HOT WATER
    Date published: 2021-02-13
    Rated 5 out of 5 by from Big Hot Water Heater I love this water heater because I don't have to worry about running out of hot water.
    Date published: 2021-01-30
    Rated 5 out of 5 by from Plenty of hot water for my application. I've had this water heater installed for a year now. No issues and plenty of hot water. The previous water heater was also a State and it was in service for 20 years! I only replaced it because I was remodeling that space. I never even had to change an element or thermostat. I'm hopeful this State water heater provides the same worry free service.
    Date published: 2021-01-27
    Rated 5 out of 5 by from Basic installation After reading the reviews I was convinced that this was the appropriate water heather for my family.
    Date published: 2021-01-18
    Rated 5 out of 5 by from Great! I bought water heater at work to take care of other water heater.
    Date published: 2020-12-28
    Rated 5 out of 5 by from Great installation by Andrew My prior water heater was an AOSmith Installed 4/17/2009–under 12 years Was please to read that State Water is now owned by AOSmith
    Date published: 2020-12-18
    Rated 5 out of 5 by from Great new featues Brand new, just installed today. I am anticipating wonderful response from this brand new product with the latest in water heater technology. My previous water heater was over 10 years old.
    Date published: 2020-12-10
    Rated 5 out of 5 by from I bought my product a year ago and so far so good.
    Date published: 2020-12-07
    Rated 5 out of 5 by from Nice Unit I had a contractor install this unit. He installed it quickly.
    Date published: 2020-12-07
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