ProLine® Master Low NOx 50-Gallon Atmospheric Vent Short Natural Gas Water Heater

Model GW8-50-BCS 400
3.3 out of 5 Customer Rating
ProLine® Master Low NOx 50-Gallon Atmospheric Vent Short Natural Gas Water Heater is rated 4.9 out of 5 by 34.
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Capacity (Gallons)
Limited Tank Warranty
Height Classification
Fuel Source
Advanced Options
First Hour Rating
Maximum BTU's
Side Loop
Diameter

  • Meets Your Hot Water Demands—Delivers an 81-gallon first hour rating
  • Energy Efficient—40,000 BTU input atmospheric vent design delivers up to 0.62 Uniform Energy Factor
  • Eco-Friendly Design Reduces Emissions—Patented Green Choice® Gas Burner design reduces NOx emissions by up to 33% and complies with Low NOx emission requirements

    • ProLine® Master Low NOx 50-Gallon Atmospheric Vent Short Natural Gas Water Heater
    Model GW8-50-BCS 400
    3.3 out of 5 Customer Rating
    ProLine® Master Low NOx 50-Gallon Atmospheric Vent Short Natural Gas Water Heater is rated 4.9 out of 5 by 34.
    • y_2025, m_10, d_6, h_9
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    Product Details
    • Meets Your Hot Water Demands—Delivers an 81-gallon first hour rating
    • Energy Efficient—40,000 BTU input atmospheric vent design delivers up to 0.62 Uniform Energy Factor
    • Eco-Friendly Design Reduces Emissions—Patented Green Choice® Gas Burner design reduces NOx emissions by up to 33% and complies with Low NOx emission requirements
    • Simple Ignition—Push-button piezo ignitor makes lighting pilot fast & easy
    • Easy-to-Use Controls—Intelligent electronic gas control provides precise temperature control and LED status indicator
    • 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
    • Peace of Mind—8-year limited tank and parts warranty for added peace of mind

      • The ProLine® Master GW8-50-BCS 50-Gallon Atmospheric Vent Short Natural Gas Water Heater is designed to deliver an economical performance that can lower your energy bills and provide long-lasting value.

      Featuring a 50-gallon (nominal) tank and a 40,000 BTU gas burner, the GW8-50-BCS Atmospheric Vent delivers a first hour rating of 81 gallons and a recovery rate of 43 gallons per hour. It carries a 8-year limited tank warranty and meets Low NOx emission requirements.

      Environmentally-friendly insulation and factory-installed heat trap nipples reduce heat loss for maximum energy savings.

      This ProLine® Master water heater is designed with State’s advanced tank features, 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.

      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
    50 Gallons
    Rated Storage Volume
    50 Gallons
    UEF
    0.62
    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"
    First Hour Rating
    81 Gallons
    ASME Certified
    No
    Blanket Included
    No
    Destination Country
    US
    Flue Diameter
    4.00
    Fuel Source
    NATURAL
    Height to T&P
    43.75
    Ignition Type
    Pilot with Piezo Igniter
    Installation Type
    INDOOR
    Application
    RESIDENTIAL
    Shipping Height 
    53.06
    Shipping Length 
    28.13
    Shipping Width 
    25.13
    Side Loop
    No
    Dimension & Venting
    Type
    Water Heater
    Height
    55.75"
    Diameter
    24"
    Shipping Weight
    175 lbs
    Vent Type
    Atmospheric Vent
    Height to Gas Valve
    14.5"
    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 Atmospheric Vent (400 series)
    Rated 5 out of 5 by from Great Water Heater This is the best Hot Water Heater that we have ever had, Thank You.
    Date published: 2023-12-21
    Rated 5 out of 5 by from Great, reliable unit Replaced 11 year old State Industries 50 gal unit.
    Date published: 2023-12-13
    Rated 5 out of 5 by from Excellent customer service. Great product. Heats up water quickly and efficiently.
    Date published: 2023-12-03
    Rated 5 out of 5 by from Fast installation i called up a friend of ours to install our system it took him roughly around 2-3 hours to install
    Date published: 2023-02-19
    Rated 5 out of 5 by from Just Installed last week Replaced my original, 24 yr. old 50 gal. State water heater with this one, another State 50 gal W.H. Early to tell but we've got "hot" water again. Original unit would only produce about 102 F water. This one, on "Hot" setting, giving me 122 F hot water now! Got 3 more hotter settings if needed. Too early to tell if my natural gas usage went up.
    Date published: 2022-09-01
    Rated 5 out of 5 by from New technology makes use easy. Old one lasted 20 years, and this installation was a breeze
    Date published: 2022-03-16
    Rated 5 out of 5 by from Good Product Satisfied with my purchase of State Water Heater and had it installed on December 15, 2021. My other Water Tank was already 20 years old and needed to replace immediately and I called a friend who is Professional in Heating and Cooling. He installed a new Water Tank and is working great!
    Date published: 2021-12-18
    Rated 5 out of 5 by from It looks good I bought it yesterday. I hope it last a long time.
    Date published: 2021-07-29
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