The newest addition to the company’s ecoTough series of gas-fired condensing tankless water heaters, NRC98 has an energy factor of 0.93, which is almost 10 points higher than a conventional tankless unit. It offers a maximum flow rate of 9.8 gallons per minute and a standard BTU input range of 16,000 to 180,000. According to the manufacturer, the heater meets the hot water needs of northern residences with two bathrooms and southern homes with three baths. Noritz America Corp., 877.986.6748;

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