GNU100-270A

GNU100-270 = Rheem/Ruud Universal™ Commercial Natural Gas Water Heater

This is a heavy-duty commercial storage tank water heater designed for large hot-water demand applications.

• Brand: Rheem / Ruud
• Model: GNU100-270
• Series: Universal™ Ultra Low NOx
• Type: Commercial storage water heater
• Fuel: Natural gas
• Capacity: 100 gallons
• Input: 270,000 BTU/h

⚙️ What it does

This unit:

• Stores and heats 100 gallons of water
• Provides high recovery hot water output
• Supports commercial facilities with continuous demand

Typical applications:

• Restaurants
• Apartment buildings
• Schools
• Gyms
• Commercial facilities

It is building infrastructure equipment, not a fixture or faucet.

📐 Key specs

• Tank capacity: 100 gallons
• Input: 270,000 BTU/h
• Fuel type: Natural gas
• Thermal efficiency: ~80–82%
• Maximum temperature: 180°F
• Height: ~66–74" overall depending on vent configuration
• Diameter: ~30.25"
• Recovery rate: ~262 GPH
• Vent type: Atmospheric vent
• Ignition: Direct spark ignition
• Ultra Low NOx compliant