ProLine Ultra-Low NOx 50-Gallon Gas Water Heater

The ProLine® Ultra-Low NOx gas water heater delivers an efficient, reliable performance and features an innovative design that protects against accidental ignition of flammable vapors.

Featuring a 50-gallon (nominal) tank and a 40,000 BTU gas burner, the GUR-50 Standard Vent delivers a first hour rating of 84 gallons and a recovery rate of 42 gallons per hour. With an 0.64 Uniform Energy Factor, this water heater is not ENERGY STAR® qualified. It carries a 6-year limited tank warranty, and meets Ultra-Low NOx emission requirements.

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  • Intelligent Control Logic
  • The internal microprocessor provides enhanced operating parameters and tighter differentials for precise sensing and faster heating response to optimize performance.
  • Uses a thermopile to generate the power needed to operate the electronic gas control without requiring an external power source.
  • The electronic gas control incorporates an LED status indicator that monitors system operation and service diagnostics.
  • DynaClean™ Diffuser Dip Tube
  • Helps reduce lime and sediment buildup, maximizes hot water output. Made from long lasting PEX cross-linked polymer.
  • High Uniform Energy Factors
  • Eco-friendly non-CFC foam insulation, heat traps and specially designed combustion chamber combine to produce a high Uniform Energy Factor for maximum savings on operating costs.
  • Green Choice® Gas Burner
  • Patented eco-friendly design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements of less than 40 ng/J.
  • Tech Specs
  • Nominal Capacity: ? 50
  • Rated Storage Volume ? 48
  • UEF 0.64
  • Maximum BTUs: 40,000
  • Power Source: Natural Gas
  • Limited Tank Warranty: 6 Years
  • Limited Parts Warranty: 6 Years
  • Anode: Coregard™ Sacrificial Anode
  • T&P Relief Valve: Yes
  • Water Connection Location: Top
  • Water Connection Size: 3/4"
  • Emissions: Ultra-Low NOx
  • First Hour Rating: 84
  • Dimensions & Venting
  • Type: Tall
  • Height: 57"
  • Height w/Draft Hood: 60"
  • Diameter: 22"
  • Width: 22"
  • Depth: 22"
  • Vent Type: Standard Vent