Which Noritz tankless water heater model is right for my application?
The best way to size a tankless water heater for any application is to estimate the peak flow capacity that will need to be supplied by the water heater at any time. For residential use, this will most likely be the maximum number of showers that may be used simultaneously, multiplied by the flow rate of the showerheads. This calculation should only be done by a qualified plumber or contractor. Once this maximum flow rate is calculated, consult the specifications for each heater to determine which model meets your demand. Please consult with your plumber or contractor, or inquire with Noritz for commercial application sizing.
