Commercial Gas Water Heater, Natural Gas, 75 gal, 125,000 BtuH, 120V AC, 26-1/4 in Dia.

The RHEEM-RUUD GNU75-125 is a commercial natural gas water heater with a 75 gallon tank and 125,000 BtuH input. It is designed for commercial hot water storage and recovery, with a first hour rating of 174 gallons and recovery rates up to 242 gph at a 50°F rise. This unit uses 120V AC power and a direct spark to pilot ignition system, and it is built with side water connections for installation in commercial plumbing systems.

Key Features:

• 75 gallon tank capacity: Provides stored hot water volume for commercial water heating applications.
• 125,000 BtuH input: Indicates the heater's gas-fired heating capacity.
• First hour rating of 174 gallons: Reflects the amount of hot water the unit can deliver during the first hour of operation.
• Recovery rates up to 242 gph: Recovery ranges from 87 gph to 242 gph depending on temperature rise, including 121 gph at 100°F rise and 101 gph at 120°F rise.
• Natural gas fuel type: Configured for natural gas service with a 3/4 in gas connection.
• 90% thermal efficiency: States the unit's thermal efficiency rating.
• 120V AC operation: Requires 120V AC electrical power for operation.
• Direct spark to pilot ignition: Uses an electronic ignition method for burner startup.
• Low NOx burner: Includes a low NOx burner design.
• Connections and dimensions: Features 1-1/2 in side water connections, a 5 in vent connection, 26-1/4 in jacket diameter, and 65-1/2 in overall height.
• Included components: Comes with a full port/full flow brass drain valve, temperature and pressure relief valve, ULN burner, and LED/System Sentinel diagnostic features.
• Standards: Listed to ANSI Z21.10.3, ASHRAE 90.1b-2001, and CSA Certified.