With more power than any tankless water heater in its class, the 751 series is ideal for mid-size homes with up to 3 showers.  Built-in features include safety lock-out, freeze protection, and high elevation adjustment.  These units also offer several innovations:

Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)

Dual flame burner - Noritz exclusive!  Increases performance and efficiency.

Fully modulating - Automatically adjusts burner level accordingly.

Turbo Flow - Up to 9.8 GPM @ 35 degree temperature rise (7.5 GPM @ 45 degree rise).

Quick Connect - Doubles the output by connecting two identical heaters.

Direct ignition - No standby pilot light.

Thermal fuse - Automatic overheat protection system.

Resin coated PC board - Increases durability and protection from elements.

Automatic air regulator - Monitors internal temperature/maximizes burner efficiency.

Commercial grade heat exchanger - 25% thicker piping than our competition

*Energy Factor (EF) is a measurement of relative energy efficiency for a water heater; the higher the EF, the more energy efficient the water heater.