The Energy Star-rated NRC90, the newest addition to the Noritz ecoTOUGH series of gas-fired residential condensing tankless water heaters, has an Energy Factor of 0.93. With a maximum flow rate of 9.8 gpm, the NRC89 protects the environment by heating water strictly on demand while offering a longer product life cycle. It also promises lower emissions, reduced electrical consumption, smaller amounts of potentially hazardous construction materials and easier recyclability of materials and components.
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