ProLine® XE Low NOx 40-Gallon Power Vent Natural Gas Water Heater

Model GS6-40-YBVIS 200
3.8 out of 5 Customer Rating
ProLine® XE Low NOx 40-Gallon Power Vent Natural Gas Water Heater is rated 4.6 out of 5 by 265.
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Capacity (Gallons)
Fuel Source
Maximum BTU's
Side Loop

  • Meets Your Hot Water Demands—Delivers a 73-gallon first hour rating
  • Energy Efficient—40,000 BTU input power vent design delivers up to 0.67 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® XE Low NOx 40-Gallon Power Vent Natural Gas Water Heater
    Model GS6-40-YBVIS 200
    3.8 out of 5 Customer Rating
    ProLine® XE Low NOx 40-Gallon Power Vent Natural Gas Water Heater is rated 4.6 out of 5 by 265.
    • y_2026, m_2, d_6, h_6
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
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    What to Expect from this Model
    modal-clock
    tooltip
    Number of minutes you can enjoy a shower before running out of hot water. Assumes a 2.1 GPM flow rate
    25.8 minutes
    single shower length
    modal-frame
    tooltip
    Number of back-to-back showers you can take without running out of hot water. Assumes a 2.1 GPM flow rate and an 8 minute shower length
    3.2 showers
    back-to-back
    modal-frame
    tooltip
    Number of showers you can take at the same time without running out of hot water. Assumes a 2.1 GPM flow rate and an 8 minute shower length
    2.4 showers
    at the same time
    modal-tank-capacity
    tooltip
    Biggest tub this water heater will fill without running out of hot water. Assumes a 5.0 GPM flow rate, and a 67% fill level
    61 gallons
    max tub size
    modal-cost
    tooltip
    The estimated annual cost to operate this water heater in your location
    $279/year
    est. energy cost
    Based on location results for Columbus, OH 43215
    modal-edit
    Edit Location / Advanced Settings
    Product Details
    • Meets Your Hot Water Demands—Delivers a 73-gallon first hour rating
    • Energy Efficient—40,000 BTU input power vent design delivers up to 0.67 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
    • Lowers Gas Usage—Automatic pilot relight system reduces gas consumption and eliminates nuisance pilot outages
    • 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—6-year limited tank and parts warranty for added peace of mind

      • The ProLine® XE Power Vent Natural Gas Water Heater maximizes efficiency and provides flexible installation options by using an exclusive 3 position rotatable blower outlet. The GS6-40-YBVIS features a 40-gallon (nominal) tank and a 40,000 BTU gas burner to deliver a first-hour rating of 73 gallons and a recovery rate of 44.7 gallons per hour.

      A patented Green Choice® eco-friendly burner design reduces NOx emissions up to 33% and complies with Low NOx emission requirements of 40 ng/J. All models are equipped with a protected sensor that detects the presence of flammable vapors and automatically disables the burner to prevent ignition.

      The GS6-40-YBVIS 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 a 6-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
    0.67
    Maximum BTUs
    40,000
    Power Source
    GAS
    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
    73 Gallons
    ASME Certified
    No
    LEED Rating
    1.00
    Amperes
    5
    Blanket Included
    No
    Destination Country
    US
    Digital Display
    Yes
    Flue Diameter
    4.00
    Fuel Source
    NATURAL
    Height to T&P
    42.50
    Ignition Type
    Electronic Hot Surface Igniter
    Installation Type
    INDOOR
    Application
    RESIDENTIAL
    Shipping Height 
    61
    Shipping Length 
    31.63
    Shipping Width 
    23.5
    Side Loop
    No
    Voltage
    120
    Dimension & Venting
    Type
    Water Heater
    Height
    58.5"
    Diameter
    22"
    Shipping Weight
    174 lbs
    Vent Type
    Power Vent
    Height to Gas Valve
    13.25"
    Find a Replacement
    Current Product
    Option 2
    ProLine® XE Low NOx 40-Gallon Power Vent Natural Gas Water Heater
    Adapt® SC Standard Condensing 180,000 BTU Natural Gas Tankless Water Heater
    GS6-40-YBVIS
    STM-180M-N
    current Product
    option 1
    Rebates up to $300 +
    Rebates up to $300 +
    Nominal Capacity
    40 Gallons
    1 Gallons
    Rated Storage Volume
    38 Gallons
    Diameter
    22"
    Width
    17.12"
    Depth
    29.75"
    11.85"
    Height
    58.5"
    32.46"
    Shipping Weight
    174lbs
    93lbs
    Power Source
    GAS
    GAS
    Limited Tank Warranty
    6 Years
    0 Years
    Limited Parts Warranty
    6 Years
    5 Years
    T&P Relief Valve
    Yes
    Water Connection Location
    TOP
    BOTTOM
    Water Connection Size
    0.75"
    0.75"
    First Hour Rating
    73 Gallons
    Thermal Efficiency
    0%
    0%
    All Reviews for ProLine® XE Power Vent (200 series)
    Rated 5 out of 5 by from Really Nice Quality Unit I purchased this a week in a half ago after my previous water heater of 23 years quit. I bought this particular model because it was basically a twin of what I was replacing. This unit appears to run just a little less than the one I replaced. Hoping to get another 23 years!
    Date published: 2026-01-13
    Rated 5 out of 5 by from Looks good but only used for one shower so far Purchased and installed by contractor 1/9/2026 Midwest Plumbing and Supply.
    Date published: 2026-01-10
    Rated 5 out of 5 by from Good to have hot water Great heater is an awesome choice…………………………….love it
    Date published: 2025-12-10
    Rated 5 out of 5 by from A little too early to review as it was just installed today but so far so good. State came highly recommended by my plumber so we will soon see
    Date published: 2025-11-17
    Rated 5 out of 5 by from Nice hot water heater it works very well and it is quick.
    Date published: 2025-10-02
    Rated 5 out of 5 by from Works as it should Old one started leaking. Went down to a 50 from a 75 gallon. seems to heat slower.
    Date published: 2025-09-16
    Rated 5 out of 5 by from Just had tank installed two days ago. At this time it is working fine.
    Date published: 2025-09-13
    Rated 5 out of 5 by from New water heater The water heater performed very well right off the bat. The only thing noticeable was a faint odor for a few days after the installation. Operation has been flawless for these past several months.
    Date published: 2025-08-11
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