The commercial water heater systems from Noritz America Corp. combine commercial-grade tankless units with system controllers, manifolds, and other necessary components and accessories into fully assembled metal rack systems. The prefabricated system simplifies installation because the installer only needs to connect the water and gas lines, build the vent runs and set up the prewired system controller. Thirty-six different rack models are available with inputs from 16,000 to 199,900 Btu per hour and a maximum flow rate up to 11.1 gpm. 877/986-6748; www.noritz.com.
 


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