MSRP: $2,399.00

NEW MODEL!

"The most advanced Noritz heater - over 93% efficient"

Noritz is proud to introduce our most efficient tankless heaters, the next generation in tankless technology - condensing heaters. This innovation utilizes a dual heat exchanger, a fusion of stainless steel and copper heat exchangers. The 100% stainless steel component captures the residual heat from the exhaust temperature to preheat the incoming water before it runs through the main copper heat exchanger. This results in dramatic reduction of carbon dioxide and increases the heater's efficiency level to over 93%! Another benefit of this technology is lower exhaust temperatures, which means less costly PVC can be used for its venting.



To help ensure the longevity of its performance, we have enclosed the heater’s commercial grade components with a corrosion-free stainless steel exterior casing, giving the look and feel of other professional grade equipment. The 841 series is the most versatile unit since it can be used for both residential and commercial applications. It's the coolest and greenest tankless water heater available today! Built-in features include safety lock-out, freeze protection, and high elevation adjustment. These units also offer several innovations:


Condensing technology - The most advanced Noritz unit, 93% efficiency level!


Combi-system set-up - Open loop system functionality for both potable water heating and space heating combination system.


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


Dual flame burner - Noritz exclusive! Minimizes temperature fluctuations.


Fully modulating - Automatically adjusts burner level accordingly.


Dual heat exchanger - 100% stainless steel corrosion resistant heat exchanger fused with a commercial grade copper heat exchanger.


Turbo Flow - Up to 11.1 GPM @ 35 degree temperature rise (8.4 GPM @ 45 degree rise).


Quick Connect - Doubles output by connecting 2 identical units with a single cable.


Multi System - Up to 24 units can be linked and operated by a single system controller.


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.


Neutralizer included - Built-in neutralizing system for condensation.


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

Owners Manual