THE ECOTOUGH SERIES OF TANKLESS WATER HEATERS are gas-fired units designed for the needs of the residential market. The model NRC661 has an Energy Factor of 0.91 for natural gas and 0.93 for LP. These small, condensing heaters can deliver 6.6 GPM with a maximum input of 120,000 Btuh.
NoritzCIRCLE 106 on inquiry card
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Monthly Plumbing Quiz – Water Conservation
Sept. 1, 2024
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