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Residential Products
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Xtreme

MODEL GX90-550AH NG
  • 3-Year limited tank warranty
  • 90-Gallon Capacity
  • 500,000-715,000 BTU/h
  • Low NOx performance, less than 40ng/J
  • Energy Saving Ignition System

SKU GX90-550AH NG
Model Xtreme
Tank Capacity 90
Fuel Natural Gas
Height 68"
Single Shower Minutes 41
Number Back To Back Showers 4

Features & Benefits

  • Xtreme is an advanced line of fast recovery commercial gas water heaters. These products can deliver up to 693gallons per hour at 100 degree F rise.The small jacket diameter makes it a popular choice for retro fits and it is a versatile choice for new construction. Models range from 500,000-715,000BTU/h, with a maximum temperature setting of 180 degrees Fahrenheit.

Space Saver Design

  • Xtreme maximizes installation adaptability by offering models with front and rear inlet/outlet water connections. Short heights and small jacket diameters result in greater installation flexibility. 

System Sentinel LED Diagnostic System

  • Our exclusive diagnostic system, with glowing LED lights, verifies system operation sequence by sequence.

Multi-Flue TankDesign

  • Proprietary steel formulation, patented multi-flue design, and two coats of high temperature porcelain enamel maximize corrosion resistance and result in a superior heat exchanger design.

Automatic Flue Damper

  • Low profile design minimizes overall product height. Heavy duty vent hood supports are designed to withstand rigors of installation.

Specialized Burner Assembly

  • Each model features five premix burners mounted into a metal face plate and sealed with a Viton gasket. Innovative “quick release” manifold for easier service.

Direct Spark-to-Pilot Ignition System

  • Energy saving ignition that ignites pilot only when there is a call for heat. 

Round Premix Burners 

  • Precision burners are formed from high chromium stainless steel.

Low NOx Emissions

  • GX90-550 and GX90-640 meet low NOx emissions of less than 40 ng/J.

Full-port, Full-flow Drain Valve

  • Factory installed brass drain valve allows for faster draining and servicing.

Altitude Certifications

  • Standard Natural and LP models are certified up to 2,000 feet. High altitude models, 8,000 feet.

Anode Rods

  • Design utilizes multiple magnesium rods to ensure long life and corrosion resistance.

  • 3-Year limited tank warranty

HLW on selected modelsNatural GasGas-Fired UL ListedAHRI

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Find additional documentation by viewing these related products.

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