Recomment with respect to Rheem GNU100-250 N/A Commercial 100 Gallon Natural Gas Ultra Low Nox Commercial Water Heater 250000 Max BTU Input Preserve Presently

Rheem, GNU100-250, Commercial, N/A, Universal Heavy Duty, Water Heaters, Gas/Propane Universal Heavy Duty Collection Commercial Natural Gas Ultra Low Nox Water Heater with 100 Gallon Tank 250000 Max BTU InputNeed a ultra low nitrous oxide solution? Rated for less than 14 ng/J this unit features an ultra low NOx burner. Part of the Universal Heavy Duty collection of water heaters, this unit is an excellent choice for commercial retrofits. Its compact size and multiple water connections simplify installations. Need installation flexibility? This water heater has water inlets and outlets on top, front, and rear.Minimize Down TimeThe stainless steel burner assembly slides out like a drawer for quick inspection and maintenance. Factory installed brass drain valve features full-port, full flow which allows faster draining and servicing. Multiple magnesium anode rods ensure corrosion resistance for longer tank life.Save moneyThe Direct Spark-to-Pilot ignition is designed to save energy and only ignites the pilot when there is a call for heat.Patented TechnologyPatented multi-flue design using a proprietary steel formulation, combined with two coats of porcelain enamel, and the results equal a superior heat exchanger.System SentinelRheem s exclusive diagnostic system. It watches over the water heater and verifies system operation sequence by sequence via LED lights.Ultra Low NOx BurnerNeed less than 14 ng/J performance? This burner delivers. The power assist burner design incorporates stainless steel multi-port burner tubes for long term ultra low NOx performance. A sight glass allows for burner observation. The entire design is removable and is highly resistant to the effects of negative air pressure common in modern commercial buildings.Specifications:Tank Capacity: 100 GallonsThermal Efficiency: 80%Performance:First Hour Rati