Rheem Universal Heavy-Duty 76 Gal. Commercial 199.9K BTU Ultra-Low NOx Natural Gas Tank Water Heater

Item # 300308094 | Rheem Part # GNU76-200 | UPC Code 020352606194 | UNSPSC Code 40101826
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Product Overview

Universal Heavy-duty commercial gas water heater is designed to fit into tighter commercial retrofit applications. The compact size and multiple water connections simplify installations. The high BTU/Hour. input allows for quicker recovery.

  • Due to ultra-low NOx requirements from air quality management districts in the state of California, please confirm that your shipping zip code is not restricted from the use of items that do not meet local qualifications
  • Space saver design allows for greater installation flexibility
  • System sentinel LED diagnostic system verifies system operation sequence by sequence
  • Patented multi-flue tank design results in a superior heat exchanger design
  • Spark to pilot ignition system
  • Factory installed temperature and pressure relief valve
  • 3-year limited tank warranty
  • 80% thermal efficiency
  • Full-port, full-flow brass drain valve allows for faster draining and servicing
  • Energy saving ignition that ignites pilot only when there is a call for heat

Proposition 65 Information

Prop65 Warning Icon WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov


BTU Rating
Certifications and Listings
CSA Listed, UL Classified
Finish Family
Fuel Type
Nominal Tank Capacity (gallons)
Pack Size
Product Depth (in.)
Product Height (in.)
Product Weight (lb.)
Product Width (in.)
Vent Type
Water Heater Gas Type
Natural Gas