Rheem® GNU100-250 Universal™ Heavy Duty Gas Water Heater, 100 gal Tank, 250000 Btu/hr Heating, Natural Gas Fuel, Atmospheric Vent, 82 %

• Space saver design - The short heights and narrow jacket diameters, plus the top, front and rear water inlets/outlets offer the ultimate in installation flexibility
• System Sentinel™ LED diagnostic system - Our exclusive diagnostic system, with glowing LED lights, verifies system operation sequence by sequence
• Patented technology - Universal™ proprietary steel formulation, patented multi-flue design, combined with two coats of porcelain enamel, results in a superior heat exchanger design
• Ultra Low NOx burner - The power assist burner design incorporates stainless steel multi-port burner tubes for long term Ultra Low NOx performance, less than 14 ng/J A sight glass allows for burner observation
• The entire design is removable and it is highly resistant to the effects of negative air pressure common in modern commercial buildings
• Base rail design - Provides for better handling when moving and positioning unit
• Low profile automatic flue damper - Low profile damper minimizes overall product height
• Heavy duty vent hood supports are designed to withstand the rigors of installation
• Full-port, full flow drain valve - Factory installed brass drain valve allows for faster draining and servicing
• Direct spark-to-pilot ignition system - Energy saving ignition that ignites pilot only when there is a call for heat