ProLine® XE Low NOx 40-Gallon Power Direct Vent Liquid Propane Water Heater

Model GS6-40-HBPDS 301
5 out of 5 Customer Rating
ProLine® XE Low NOx 40-Gallon Power Direct Vent Liquid Propane Water Heater is rated 4.3 out of 5 by 21.
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Capacity (Gallons)
Fuel Source
First Hour Rating
Side Loop

  • Meets Your Hot Water Demands—Delivers a 74-gallon first hour rating
  • Energy Efficient—40,000 BTU input power direct vent design delivers up to 0.68 Uniform Energy Factor
  • ProLine® XE Low NOx 40-Gallon Power Direct Vent Liquid Propane Water Heater
    Model GS6-40-HBPDS 301
    5 out of 5 Customer Rating
    ProLine® XE Low NOx 40-Gallon Power Direct Vent Liquid Propane Water Heater is rated 4.3 out of 5 by 21.
    • y_2025, m_9, d_13, h_4
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    Product Details
    • Meets Your Hot Water Demands—Delivers a 74-gallon first hour rating
    • Energy Efficient—40,000 BTU input power direct vent design delivers up to 0.68 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 Direct Vent Liquid Propane Gas Water Heater features a two-pipe combustion system that draws clean air in from outside the home, eliminating any concerns about indoor ventilation. The GS6-40-HBPDS features a 40-gallon (nominal) tank and a 40,000 BTU propane burner to deliver a first-hour rating of 74 gallons and a recovery rate of 45 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-HBPDS 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
    0.68
    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
    1"
    Emissions
    Low NOx
    First Hour Rating
    74 Gallons
    ASME Certified
    No
    LEED Rating
    1.00
    Amperes
    5
    Blanket Included
    No
    Destination Country
    US
    Flue Diameter
    4.00
    Fuel Source
    PROPANE
    Height to T&P
    42.50
    Ignition Type
    Electronic Hot Surface Igniter
    Installation Type
    INDOOR
    Application
    RESIDENTIAL
    Shipping Height 
    60.56
    Shipping Length 
    31.2
    Shipping Width 
    23.4
    Side Loop
    No
    Voltage
    120
    Dimension & Venting
    Type
    Water Heater
    Height
    58.5"
    Diameter
    22"
    Shipping Weight
    177 lbs
    Vent Type
    Power Direct Vent
    Height to Gas Valve
    12"
    All Reviews for ProLine® XE Power Direct Vent (300 series)
    Rated 5 out of 5 by from We recently installed a State water heater about two weeks ago, and so far, the experience has been positive. The installation process was smooth, and the unit itself is well-built and sturdy. It’s been reliably providing hot water for our household without any issues. While it’s still early to judge long-term performance, we’re optimistic based on these initial weeks. We’ll update our review after more usage, but for now, we’re satisfied with our purchase. Great product so far!
    Date published: 2025-03-01
    Rated 5 out of 5 by from delivers hot water! came installed in my new home. it works as expected.
    Date published: 2020-05-20
    Rated 5 out of 5 by from No worries This has been a great asset. It is quiet, small compared to my last one.
    Date published: 2020-05-09
    Rated 5 out of 5 by from Great product We bought a house that has this water heater--it's on it's 21st year and it is good condition. We are going to have it replaced due to corrosion on the bottom but it speaks volumes for a product to be reliable and last so long. I would definitely recommend it!
    Date published: 2019-07-24
    Rated 5 out of 5 by from Well built Had this for 27 years a Air pressure switch finally went bad at that age I decided to buy a new one.
    Date published: 2019-04-18
    Rated 5 out of 5 by from Excellent water heater The unit has only been installed for 9 days, but we are very impressed with it, so far. I think it will serve our needs very well.
    Date published: 2016-03-13
    Rated 5 out of 5 by from Great Water Heater Brand, Last one lasted 23years The only fault is that the dimensions were incorrect "bottom to C/L of Vent 68 inches. To top of Tank 54 3/4 and is 49 3/4. This is a big mistake when I was prepping for a different size of heater but managed to adjust for the change. The intake shroud changes position placement of heater also. Overall I really like the updated version of this heater after 23 years.
    Date published: 2015-12-04
    Rated 4 out of 5 by from *Replaced,With-A-Warranty… *”WETHEPEOPLE…Replaced,With-A-Warranty,AfterAlmostTwo(2)Years…Thanks-Much…AMEN…”!?!?!
    Date published: 2023-06-24
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