For our luxury line, we have the 931 series which can provide endless hot water up to 4+ showers at a time. And with its Quick-Connect system, two units can be linked together to meet the high demand of today’s luxury homes. To accomodate the higher flow rate demand, these units have a dual flame burner, redesigned heat exchanger and 25% thicker copper piping. No other tankless water heater in its class can beat its performance, dependability, and quality. The N-0931M is for indoor/outdoor use.

• Thermal Efficiency: 84%