ProLine® Ultra-Low Nox Direct Vent 50-Gallon Gas Water Heater

Model GDNT-50L
4.1 out of 5 Customer Rating
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Capacity (Gallons)
  • Delivers 81-gallon first hour rating
  • 38,000 BTU input direct vent design delivers up to 0.65 Uniform Energy Factor
  • Direct vent design compatible with 1/2" gas connection
Product Details
  • Delivers 81-gallon first hour rating
  • 38,000 BTU input direct vent design delivers up to 0.65 Uniform Energy Factor
  • Direct vent design compatible with 1/2" gas connection
  • Durable Ultra-Low NOX Green Choice® gas burner includes strong stainless steel components to withstand high temperature applications and meets or exceeds emission requirements in California & Utah
  • Push-button piezo ignitor makes lighting pilot fast and easy
  • Flammable vapor resistant/direct vent sealed combustion system vents through outside wall or roof using air for combustion from outside building
  • Includes side mounted recirculation taps for easy installation with combination space heating/potable water heating applications
  • Patented Blue Diamond® glass tank lining protects against corrosion
  • DynaClean™ automates cleaning system protects against sediment build-up
  • 6-year limited tank and parts warranty

  • The ProLine XE® 50-Gallon Ultra-Low NOx Direct Vent Natural Gas Water Heater offer horizontal or vertical venting options in an FVIR solution to reduce the risk of accidental fires involving flammable vapors.

    Featuring a 50-gallon (nominal) tank and a 38,000 BTU gas burner, the GDNT-50L-100 Direct Vent Ultra-Low NOx delivers a first hour rating of 81 gallons and a recovery rate of 41 gallons per hour. It carries a 6-year limited tank warranty, and meets Ultra-Low NOx emission requirements.

    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 standard and are only available for purchase through professional wholesalers and contractors.

Specifications
Tech Specs
Nominal Gallon Capacity
50 Gallons
Maximum BTUs
38,000
Power Source
GAS
Limited Tank Warranty
6 Years
Limited Parts Warranty
6 Years
T&P Relief Valve
TRUE
Water Connection Location
TOP
Water Connection Size
0.75"
Emissions
Ultra-Low NOx
ASME Certified
No
Blanket Included
No
Destination Country
US
Flue Diameter
4.00
Fuel Source
NATURAL
Height to Gas Valve
13.00
Height to T&P
52.00
Ignition Type
Pilot with Piezo Igniter
Installation Type
INDOOR
Application
RESIDENTIAL
Product Tier
ProLine®
Shipping Height 
65.75
Shipping Length 
31.5
Shipping Width 
30.5
Side Loop
No
Dimension & Venting
Type
Water Heater
Height
58.75"
Diameter
22 in."
Shipping Weight
194lbs
Vent Type
Direct Vent
Find a Replacement
Current Product
Option 2
ProLine® Ultra-Low Nox Direct Vent 50-Gallon Gas Water Heater
ProLine® XE Ultra-Low NOx Indoor 199,000 BTU Condensing Natural Gas Tankless Water Heater
GDNT-50L
ATI-540H
Rebates up to $300 +
Rebates up to $300 +
Nominal Capacity
50 Gallons
Diameter
22 in."
Width
17.75"
Depth
30.5"
11.25"
Height
58.75"
23.63"
Shipping Weight
194lbs
70lbs
Power Source
GAS
GAS
Limited Tank Warranty
6 Years
15 Years
Limited Parts Warranty
6 Years
5 Years
T&P Relief Valve
TRUE
Water Connection Location
TOP
BOTTOM
Water Connection Size
0.75"
Thermal Efficiency
0%
0%
All Reviews for ProLine® Direct Vent Ultra-Low Nox (100 series)
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