ProLine® Ultra-Low NOx Master 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater

Model GW8-40-BCUT 450
3.1 out of 5 Customer Rating
ProLine® Ultra-Low NOx Master 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater is rated 4.8 out of 5 by 4.
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Capacity (Gallons)
Height Classification
UEF
Advanced Options
Limited Tank Warranty
Diameter

  • Meets Your Hot Water Demands—Delivers an 83-gallon first hour rating
  • Energy Efficient—40,000 BTU input atmospheric vent design delivers up to 0.64 Uniform Energy Factor
  • Green Choice® Burner—Ultra-Low NOX Green Choice® gas burner meets or exceeds emission requirements in California & Utah

    • ProLine® Ultra-Low NOx Master 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater
    Model GW8-40-BCUT 450
    3.1 out of 5 Customer Rating
    ProLine® Ultra-Low NOx Master 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater is rated 4.8 out of 5 by 4.
    • y_2025, m_9, d_9, h_6
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
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    • co_hasreviews, tv_0, tr_4
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    Product Details
    • Meets Your Hot Water Demands—Delivers an 83-gallon first hour rating
    • Energy Efficient—40,000 BTU input atmospheric vent design delivers up to 0.64 Uniform Energy Factor
    • Green Choice® Burner—Ultra-Low NOX Green Choice® gas burner meets or exceeds emission requirements in California & Utah
    • Simple Ignition—Push-button piezo ignitor makes lighting pilot fast & easy
    • 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
    • Peace of Mind—8-year limited tank and parts warranty for added peace of mind

      • The ProLine® Master 40-Gallon Ultra-Low NOx Atmospheric Vent Tall Natural Gas Water Heater delivers an efficient, reliable performance with an innovative design that protects against accidental ignition of flammable vapors.

      The GW8-40-BCUT features a 40-gallon (nominal) tank and a 40,000 BTU gas burner to deliver a first-hour rating of 83 gallons and a recovery rate of 41 gallons per hour. This model uses a patented Green Choice® eco-friendly burner and meets Ultra-Low NOx emission requirements.

      This ProLine® water heater features State’s advanced tank protection, including 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, which is backed by an 8-year limited tank and parts 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
    38 Gallons
    UEF
    0.64
    Maximum BTUs
    40,000
    Power Source
    GAS
    Limited Tank Warranty
    8 Years
    Limited Parts Warranty
    8 Years
    T&P Relief Valve
    Yes
    Water Connection Location
    TOP
    Water Connection Size
    0.75"
    Emissions
    Ultra-Low NOx
    First Hour Rating
    83 Gallons
    ASME Certified
    No
    Blanket Included
    No
    Destination Country
    US
    Flue Diameter
    4.00
    Fuel Source
    NATURAL
    Height to T&P
    51.75
    Ignition Type
    Pilot with Piezo Igniter
    Installation Type
    INDOOR
    Application
    RESIDENTIAL
    Shipping Height 
    62.31
    Shipping Length 
    24
    Shipping Width 
    21
    Side Loop
    No
    Dimension & Venting
    Type
    Water Heater
    Height
    58.25"
    Diameter
    20"
    Shipping Weight
    146 lbs
    Vent Type
    Atmospheric Vent
    Height to Gas Valve
    11"
    Maintenance & Troubleshooting
    Maintenance

    Residential Series Atmospheric Vent Lighting the Pilot

    Troubleshooting

    Residential Series Atmospheric Vent Draft Test

    Residential Series Atmospheric Vent No Hot Water

    Residential Series Atmospheric Vent Status Code 1 Flash

    Residential Series Atmospheric Vent Status Code 2 Flash

    Residential Series Atmospheric Vent Status Code 4 Flash

    Residential Series Atmospheric Vent Status Code 5 Flash

    Residential Series Atmospheric Vent Status Code 7 Flash

    Residential Series Atmospheric Vent Status Code 8 Flash

    Residential Series Atmospheric Vent Status Code Light Continuous

    Marketing Videos
    Residential Series Atmospheric Vent Application and Installation
    Residential Series Atmospheric Vent Features and Benefits
    Residential Series Atmospheric Vent How It Works
    All Reviews for ProLine® Master Ultra-Low NOx Atmospheric Vent (450 series)
    Rated 5 out of 5 by from GEAT PRODUCT JUST REPLACED AND ITS A GREAT WATER HEATED. ALSO EASY TO INSTALL
    Date published: 2023-12-26
    Rated 5 out of 5 by from Hot water at lower setting Bought to replace my 20 year State water heater that never went bad. I just wanted more efficiency and hopefully another 20 years of great service!
    Date published: 2023-08-07
    Rated 5 out of 5 by from Water Heater Bought and had it installed 08/23/2017 and it is great
    Date published: 2017-08-23
    Rated 4 out of 5 by from What an improvement from my old water heater! Many more extras from my last water heater! Built in insulation, quite, and extra safety features. I'm sure I'll get many years of trouble free service from this unit.
    Date published: 2018-01-30
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