ProLine® Low NOx 74-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater

Model GS6-75-XRRS 400
3.7 out of 5 Customer Rating
ProLine® Low NOx 74-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater is rated 4.6 out of 5 by 64.
  • y_2025, m_9, d_4, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_9, tr_55
  • loc_en_US, sid_gs6-75-xrrs-400, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_statewaterheaters
  • bvseo_sdk, dw_cartridge, 21.1.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 54ms
  • reviews, product
Fuel Source
Capacity (Gallons)
Limited Tank Warranty
Side Loop

  • Meets Your Hot Water Demands—Delivers a 125-gallon first hour rating
  • High Capacity—High capacity gas water heater uses 75,100 BTU atmospheric vent input
  • 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® Low NOx 74-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater
    Model GS6-75-XRRS 400
    3.7 out of 5 Customer Rating
    ProLine® Low NOx 74-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater is rated 4.6 out of 5 by 64.
    • y_2025, m_9, d_4, h_6
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
    • cp_1, bvpage1
    • co_hasreviews, tv_9, tr_55
    • loc_en_US, sid_gs6-75-xrrs-400, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_statewaterheaters
    • bvseo_sdk, dw_cartridge, 21.1.0, p_sdk_3.2.0
    • CLOUD, getAggregateRating, 54ms
    • reviews, product
    Product Details
    • Meets Your Hot Water Demands—Delivers a 125-gallon first hour rating
    • High Capacity—High capacity gas water heater uses 75,100 BTU atmospheric vent input
    • 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
    • Automatic Safety Features—Fully automatic controls with safety shutoff, requires no power
    • 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® 74-Gallon High-Recovery Atmospheric Vent Gas Water Heater features a 75,100 BTU gas burner to deliver a first-hour rating of 125 gallons and a recovery rate up to 81 gallons per hour. The GS6-75-XRRS has a thermal efficiency of 80% and a Uniform Energy Factor of 0.60.

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

      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 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
    74 Gallons
    Rated Storage Volume
    71 Gallons
    UEF
    0.6
    Thermal Efficiency
    80%
    Maximum BTUs
    75,100
    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
    1"
    Emissions
    Low NOx
    First Hour Rating
    125 Gallons
    ASME Certified
    No
    Blanket Included
    No
    Destination Country
    US
    Flue Diameter
    5.00
    Fuel Source
    NATURAL
    Ignition Type
    Pilot with Piezo Igniter
    Installation Type
    INDOOR
    Application
    RESIDENTIAL
    Shipping Height 
    60.38
    Shipping Length 
    33
    Shipping Width 
    29.25
    Side Loop
    No
    Dimension & Venting
    Type
    Water Heater
    Height
    57"
    Diameter
    26.39"
    Shipping Weight
    270 lbs
    Vent Type
    Atmospheric Vent
    Find a Replacement
    Current Product
    Option 2
    ProLine® Low NOx 74-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater
    Adapt™ SC Standard Condensing 199,000 BTU Natural Gas Tankless Water Heater
    GS6-75-XRRS
    STM-199M-N
    Rebates up to $300 +
    Rebates up to $300 +
    Nominal Capacity
    74 Gallons
    1 Gallons
    Rated Storage Volume
    71 Gallons
    Diameter
    26.39"
    Width
    17.12"
    Depth
    26.5"
    11.85"
    Height
    57"
    32.46"
    Shipping Weight
    270lbs
    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
    1"
    0.75"
    First Hour Rating
    125 Gallons
    Thermal Efficiency
    80%
    0%
    All Reviews for ProLine® High Capacity Atmospheric Vent (400 series)
    Rated 5 out of 5 by from works as designed Installed it in my house a month ago along with water circulator and mixing valve. It works super well. You'd need to ask me in 6 years :) I was told by installers that it will not save my energy bill in comparison to my previous water heater of 19 years old, but I will get the performance out of it as desired. Indeed, we had 4 showers used together at some point and all were satisfied with hot water. So far - excellent!
    Date published: 2024-09-07
    Rated 5 out of 5 by from Great features. So far so good! Really enjoying the new hot water heater.
    Date published: 2024-06-09
    Rated 5 out of 5 by from Excellent Value Great Product. Now provides more than enough hot water for my household. No more cold showers after 5 family members shower! Love it!
    Date published: 2024-03-18
    Rated 5 out of 5 by from It works My old water heater failed on a Thursday. I couldn't believe hard difficult it was to actually find a 70 gallon tank. Most would be over 12 days before getting. FORTUNATELY I never gave up and Ferguson in my town. Had this model on hand! So I was only put of hot water for 2 days. Instead of weeks! I installed it. I have installed water heaters before. However this was my first propane one. So far (2 weeks later) everything is going well. This model does seem to make hotter water. (based on same settings from old one) I will need a longer span of time to see if it's more energy efficient. Nevertheless with the limited resources I had. This model is doing its job!
    Date published: 2024-02-21
    Rated 5 out of 5 by from The technology is vastly different My old unit finally died on me (17 years), so I got this one as per a local plumbing company.
    Date published: 2023-10-18
    Rated 5 out of 5 by from Reliable Water Heater We purchased this water heater from a local company. The customer service from the onset was amazing. We replaced a Rheem water heater with State Proline, and the performance is nothing short of outstanding.
    Date published: 2023-07-30
    Rated 5 out of 5 by from Works great and easy to operate This product works great and so easy to operate; like turning down the temperature when going on vacation.
    Date published: 2023-06-29
    Rated 5 out of 5 by from It was time to upgrade This unit is replacing our old 2013 GS6-75-XRRS. After 10 years we decided to get the new commercial grade Proline. Install was quick and within 1 hour we had hot showers. I especially like the new controller which has more options and a vacation mode setting.
    Date published: 2023-03-24
    • y_2025, m_9, d_4, h_6
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
    • cp_1, bvpage1
    • co_hasreviews, tv_9, tr_55
    • loc_en_US, sid_gs6-75-xrrs-400, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_statewaterheaters
    • bvseo_sdk, dw_cartridge, 21.1.0, p_sdk_3.2.0
    • CLOUD, getReviews, 7ms
    • reviews, product