Noritz has expanded its ecoTough Series of gas-fired residential condensing tankless water heaters with the new NRC83, an Energy Star-rated unit designed for smaller homes and multi-family dwellings.
Available in both indoor (the two-pipe, direct vent NRC83-DV) and outdoor (NRC83-OD) models, the wall-mounted units have an energy factor (EF) of 0.92 for natural gas and 0.94 with liquid propane, approximately 30 points higher than a standard, storage tank-type, gas-fired water heater.
The indoor units can be vented with 3- or 4-inch Schedule 40 and 80 PVC or CPVC pipe, which is less expensive and quicker to install than the Category III Stainless Steel that must be used on conventional tankless water heaters.
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