Rinnai Tankless Rinnai Ultra Series Tankless Water Heater

Product Features:ENERGY STAR® QualifiedNatural Gas and Propane Energy Factor of .96Built-in Rinnai Circ-LogicTM recirculation program cycles an external pump at pre-set intervals and temperatures to maximize efficiency and comfort (see brochure for more details)Enhanced scale detection lessens possibility of serious, long-term damage to unitTemperature lock function prevents accidental or unauthorized changes to water temperatureComplies with South Coast Air Quality Management District 14 ng/J or 20 ppm ...