ProLine® 30-Gallon Atmospheric Vent Short Natural Gas Water Heater

Model GCBL-30R 400
3.7 out of 5 Customer Rating
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Capacity (Gallons)
Limited Tank Warranty
Height Classification
Fuel Source
Advanced Options
First Hour Rating
Maximum BTU's
Side Loop
Diameter

  • Delivers 65-gallon first hour rating
  • 32,000 BTU input atmospheric vent design delivers up to 0.60 Uniform Energy Factor
  • Standard atmospheric vent installation with 3" or 4" B-vent, no power required

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    What to Expect from this Model
    modal-clock
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    Number of minutes you can enjoy a shower before running out of hot water. Assumes a 2.1 GPM flow rate
    18.6 minutes
    single shower length
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    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
    2.3 showers
    back-to-back
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    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 showers
    at the same time
    modal-tank-capacity
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    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
    49 gallons
    max tub size
    modal-cost
    tooltip
    The estimated annual cost to operate this water heater in your location
    $296/year
    est. energy cost
    Based on location results for Columbus, OH 43215
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    Edit Location / Advanced Settings
    Product Details
    • Delivers 65-gallon first hour rating
    • 32,000 BTU input atmospheric vent design delivers up to 0.60 Uniform Energy Factor
    • Standard atmospheric vent installation with 3" or 4" B-vent, no power required
    • Patented eco-friendly Green Choice® Gas Burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements
    • Push-button piezo ignitor makes lighting pilot fast & easy
    • Patented Blue Diamond® glass tank lining protects against corrosion
    • DynaClean™ automatic cleaning system protects against sediment build-up
    • Stainless steel CoreGard™ anode rod protects against corrosion longer than ordinary anodes
    • Commercial-grade brass drain valve for durable and easy operation
    • 6-year limited tank and parts warranty

      • The ProLine® 30-Gallon Atmospheric Vent Short Natural Gas Water Heater is designed to deliver an economical performance that can lower your energy bills and also provide long-lasting value. Featuring a 30-gallon (nominal) tank and a 32,000 BTU gas burner, the GCBL-30R Standard Vent delivers a first hour rating of 65 gallons and a recovery rate of 32 gallons per hour. It carries a 6-year limited tank warranty, and meets Low NOx emission requirements. This model ships with a supplied insulation blanket. Environmentally-friendly insulation and factory-installed heat trap nipples reduce heat loss for maximum energy savings. This ProLine® water heater is designed with A. O. Smith's superior commercial-grade tank protection. Advanced tank features include stainless steel CoreGard™ anode rod, Blue Diamond® glass lining and DynaClean™ automatic sediment-cleaning system, all designed to help protect the tank from the corrosive effects of water and extend the life of the water heater. A. O. Smith’s 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
    30 Gallons
    Rated Storage Volume
    29 Gallons
    UEF
    0.6
    Maximum BTUs
    32,000
    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"
    First Hour Rating
    65 Gallons
    ASME Certified
    No
    Blanket Included
    Yes
    Destination Country
    US
    Flue Diameter
    3.00
    Fuel Source
    NATURAL
    Height to Gas Valve
    13.00
    Height to T&P
    40.00
    Ignition Type
    Pilot with Piezo Igniter
    Installation Type
    INDOOR
    Application
    RESIDENTIAL
    Product Tier
    ProLine®
    Shipping Height 
    50.31"
    Shipping Length 
    24.5"
    Shipping Width 
    19"
    Side Loop
    No
    Dimension & Venting
    Type
    Water Heater
    Height
    50.25"
    Diameter
    18 in."
    Shipping Weight
    114lbs
    Vent Type
    Atmospheric Vent
    Maintenance & Troubleshooting
    Maintenance

    Residential ProLine® Series Atmospheric Vent Application and Installation

    Residential ProLine® Series Atmospheric Vent Lighting the Pilot

    Troubleshooting

    Residential ProLine® Series Atmospheric Vent Draft Test

    Residential ProLine® Series Atmospheric Vent No Hot Water

    Residential ProLine® Series Atmospheric Vent Status Code 1 Flash

    Residential ProLine® Series Atmospheric Vent Status Code 2 Flash

    Residential ProLine® Series Atmospheric Vent Status Code 4 Flash

    Residential ProLine® Series Atmospheric Vent Status Code 5 Flash

    Residential ProLine® Series Atmospheric Vent Status Code 7 Flash

    Residential ProLine® Series Atmospheric Vent Status Code 8 Flash

    Residential ProLine® Series Atmospheric Vent Status Code Light Continuous

    Marketing Videos
    Residential ProLine® Series Atmospheric Vent Features and Benefits
    Residential ProLine® Series Atmospheric Vent How It Works
    All Reviews for ProLine® Atmospheric Vent (400 series)
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