Rheem G76-200 Commercial Gas Water Heater – 76-Gallon, 400,000 BTU, High Recovery
The Rheem G76-200 is a commercial-grade, heavy-duty gas water heater built for high-demand hot water applications. With a 76-gallon tank and 400,000 BTU input, this model is engineered for continuous service in environments requiring rapid recovery and high-volume output, such as multi-unit residential, institutional, or light industrial installations.
Performance Overview
Rated Capacity: 76 gallons
BTU Input: 400,000 BTU/h
Recovery Rate: 485 GPH at 40°F ΔT
Thermal Efficiency: 80%
Maximum Working Pressure: 150 psi
Key Product Features
ASME Construction Available: Optional ASME code compliance for applications requiring certified pressure vessels.
Multi-Flue Design: Ensures consistent heat distribution and maximizes thermal transfer surface area within the tank.
Factory-Installed Components: Includes draft hood, pressure-temperature relief valve, anode rods, and gas control valve for simplified setup.
Piezo Ignition: Pilot system utilizes manual push-button spark ignition—no external power required.
Diagnostic Capabilities: Equipped with EcoStat® control system and integral diagnostics for service and troubleshooting.
Construction and Materials
Tank: Heavy-gauge steel with Rheemglas® porcelain lining to resist corrosion.
Anode Protection: Dual magnesium anode rods provide long-term tank protection against internal corrosion.
Burner Assembly: High-efficiency power burner optimized for natural gas; field conversion may be available for LP with appropriate kit.
Installation & Serviceability
Designed for upright indoor installation. The G76-200 features side-mounted water connections and standard 3/4" gas inlet. This model is suited for replacement work in mechanical rooms with adequate combustion air and venting capabilities. It must be installed and serviced by licensed personnel in accordance with local and national codes.
Height: 68-13/16"
Diameter: Approx. 27-3/4"
Vent Size: 8" Type B
Weight (empty): ~400 lbs
Warranty
Tank: 3-Year Limited Commercial Warranty
Parts: 1-Year Limited
Applications
The Rheem G76-200 is appropriate for schools, hotels, commercial kitchens, apartment buildings, and other facilities requiring consistent, high-volume hot water. This model supports manifolded installations when additional capacity is required.