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.
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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_5, h_6
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
    • cp_2, bvpage2n
    • co_hasreviews, tv_9, tr_55
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    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 reliable Just replaced my hot water heater with the same, but updated unit that I had previously. My last one lasted 14 years.
    Date published: 2023-03-23
    Rated 5 out of 5 by from Great Water Heater The first State Hot Water heater came with the home i bought in 2005. the orginal home owner had these since 1998. it lasted 25 years with no problems
    Date published: 2023-01-16
    Rated 5 out of 5 by from Going for another long term water heater New Water heater replaced a 20 year State water heater. Had such good luck I stayed with same company.
    Date published: 2022-12-16
    Rated 5 out of 5 by from Good reliability history with this product I purchased my present home in 2004 - the contractor installed a State 75 gallon gas water heater at the time. That water heater lasted over 18 years before it started a small leak - but it still kept working! I made sure to purchase the exact same brand and type for replacement - this is an exact replacement, but I believe it is more energy efficient. Looking forward to many years of service from this unit as well.
    Date published: 2022-11-08
    Rated 5 out of 5 by from Newly installed but so far so good One of the best heaters on the market. It was just installed today 11-4-22. It seems to be state of the art and a well crafted product.
    Date published: 2022-11-04
    Rated 5 out of 5 by from Long Lasting Great Value 1st one lasted 17 years through a family of 5. Looking forward to this one lasting another 17!
    Date published: 2022-09-21
    Rated 5 out of 5 by from New and Improved This is my second State water heater. The first one lasted 15 years. When i discovered my water heater was leaking i was bummed, but it was at the end of its live cycle. When my plumber installed the new version i liked it even more as it had some new features and easier lighting of the pilot.
    Date published: 2022-08-13
    Rated 5 out of 5 by from Great product We had this installed 4 months ago and we are very happy with this product. We are a family of five and we have yet to run out of hot water.
    Date published: 2022-05-24
    Rated 5 out of 5 by from Great features Unit installed 5 days ago and it’s working really well so far.
    Date published: 2022-02-19
    Rated 5 out of 5 by from The best in the 75 Gallon category We had the one leaking and replaced with the new 75 gallon. Works great. No issues. Has a great front easy to read panel for a variety of setup use modes. The indicator led status shows of anything to be taken care.
    Date published: 2022-02-15
    Rated 5 out of 5 by from We love it! So grateful our plumbing contractor found this model for us. We will spread the word. given an opportunity to do so.
    Date published: 2022-01-05
    Rated 5 out of 5 by from Water Heater Needed a water heater as soon as possible and Mr Rooter came thru with this model. Great features, nice 6 yr warranty.
    Date published: 2021-12-21
    Rated 5 out of 5 by from 16 years Now I installed mine 2/2007. I didn't drain it as specified, and we have very hard water. When I did drain it, it was limey and ugly. A few years ago, it would pop, indicating a lot of sediment. I replaced the pressure relief valve once, and added an expansion tank in the line. 16 years later, it is leaking from the PRV again, and I am replacing it. Today, I bought the exact same model to replace it. Only issue is it was three times the price.
    Date published: 2021-10-30
    Rated 5 out of 5 by from Quality product This is replacing a State water heater we put in our home when we built over 15 years ago!
    Date published: 2021-04-26
    Rated 5 out of 5 by from Great brand! We had our old State water heater for about 20 years so we really wanted to go with the same brand. State water heaters come highly recommended anyway so after doing some research, we stuck with State. I feel confident we will have this water heater for many years to come.
    Date published: 2021-03-06
    Rated 5 out of 5 by from Choice Grade A product of ultimate performance and endurance. This product has a very fair consumption of gas and delivers to its highest.
    Date published: 2021-02-14
    Rated 5 out of 5 by from Very happy with my new water heater! Bought this one as a replacement and it’s working excellently! Great product! And bonus is my water bill has been less ever since installation!!
    Date published: 2021-02-04
    Rated 5 out of 5 by from Large enough for our home. Brand new, today! This water heater was installed today and we have hot water!
    Date published: 2021-01-01
    Rated 5 out of 5 by from Great features !!!! Yes I bought it one day ago so far very happy from this product.
    Date published: 2020-12-16
    Rated 5 out of 5 by from Great water heater Excellent Product. It gives us what we want...Hot Water!
    Date published: 2020-11-25
    Rated 5 out of 5 by from Perfect for Our Family Needs Previous gas hot water heater was also a 75 gallon State gas tank and it lasted 12 years so naturally wanted another one. This new one seems to be very well built and after using it for almost a week, it seems to be doing a great job. Not sure why but the hot water seems to be getting to our faucets faster. We live in Tennessee so purchasing a product made here in this state was an added bonus. Fwiw, we really thought about switching to a tankless since the 75 gallon tanks are so expensive. However, after receiving some estimates the tankless options were more than what I wanted to spend at this time.
    Date published: 2020-07-19
    Rated 5 out of 5 by from Great features Does the job. Heats everything in a large sized home.
    Date published: 2020-03-11
    Rated 5 out of 5 by from Wonderful Water Heater Works very well so far - Certified Plumbing did an excellent install - NOTE TO MFGR - THE ACTUAL WTR HEATER MODEL # NOT ACTUALLY LISTED = last 3 digits = “400” - soooo - model is GS6-75XRRS 400
    Date published: 2019-11-20
    Rated 5 out of 5 by from New Water heater We just got installed and I turned on the water apparently did not take long to heat the water in the house. I am sure I will be pleased with it.
    Date published: 2019-05-24
    Rated 5 out of 5 by from Replaced complete HVAC system I bought this State water heater because my original water heater was a State. The original was installed in July 1997 part of the Apollo System (2 each). I replaced it because I was replacing my complete systems. Did not have a single problem with the AC units, air handlers or water heater. Performed maintenance on all of them every 6 months. With the water heater always drained it and the side loops every six months and vacuumed the burner area. Only replaced the systems because the evaporator coils in the air handlers were rusting pretty bad. There are six of us in the house. Three are females with long hair. We have never run out of hot water even on the coldest winter day. Great water heater! Continued with a State water heater because I have faith in your product. My heartfelt thanks to my fellow Americans in Tennessee.
    Date published: 2019-04-21
    Rated 5 out of 5 by from Reputable Brand Re-placed my old leaky Water Heater with a brand I can trust
    Date published: 2016-11-30
    Rated 5 out of 5 by from Do love the State Hot Water Heaters This replaces the old Apollo heater that lasted 21 years. Hope this is as good.
    Date published: 2016-10-25
    Rated 5 out of 5 by from Great performance We installed the new water heater just about 2 weeks ago and it's amazing how well it keeps up with the constant use we give it. We are a hair salon that is constantly running hot water to shampoo clients and do the laundry. We keep it set on the lowest setting and the water is still super hot and we never run out!!
    Date published: 2016-08-31
    Rated 5 out of 5 by from Never runs out We've had this water heater since 6/2012. It has worked great. Even when we've shut it off during a trip, when we return and turn it back on we have hot water within 15-25 minutes.
    Date published: 2016-08-27
    Rated 5 out of 5 by from I like easy to maintain purchased may 2016 works good color is acceptable my basement is the same color
    Date published: 2016-05-30
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