Simultaneous DHW and heating

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The new Noritz Residential Combination Boiler (NRCB) offers simultaneous residential domestic hot water and space heating. Typical combo boilers do one at a time, usually with DHW priority. The 95 percent AFUE unit meets Energy Star most efficient standards. It uses 316L copper primary and secondary heat exchangers. DHW is provided by a stainless steel flat plate heat exchanger. There are two models: The NRCB180DV has a maximum gas input Btu/h of 180,000 for DHW and 100,000 Btu/h for space heating. Maximum DHW flow rate is 9.8 gpm. The NRCB199DV has a maximum gas input of 199,000 Btu/h for DHW and 120,000 Btu/h for space heating, with a maximum flow rate of 11.1 gpm.
Noritz www.noritz.com

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