Navien NPE-240A Premium Condensing Tankless Gas Water Heater

Navien brand water heaters always keep themselves updated with latest technological trends the ich will help to deliver hot water efficiently. It is a very trusted brand all over the world. The model Navien NPE-240A Premium Condensing Tankless Gas Water Heater is one of their best tankless water heater in the collection of their stock. The minimum input of gas is 19900 BTU/hour, and the maximum gas input is 199000 BTU/hour. This Navien NPE-240A Premium can adapt to low gas pressure through its negative gas valve and fan by working in a dual operation. The stainless heat exchangers have caught the eye of many customers for it’s newly developed as an industry exclusive. The comfort flow technology helps to deliver hot water on-demand without giving any fluctuations. Thus this technology eliminates the cold water sandwich when the hot water is running.

Navien NPE-240A Premium Condensing Tankless Gas Water Heater

The features are delivered below:

  • This Navien gas tank less water heater that comes with a built-in buffer tank and recirculation pump.
  • The unit equipped with 120 volts.
  • The safety features include- ignition operation detector, flame rod sensor, power surge fuse, and the water temperature high limit switch, exhaust temperature limit sensor and many more.
  • The gas pressure requires 3.5” w.c.-10.5”w.c.
  • The unique thing about this ultra-modern gas water heater is. It can handle the low gas pressure.
  • The link-up can be done up to 16 units in one group with cables and configurations.

Latest technology:

The Navien brand developed a technology that will give the perfect hot water without waiting for it. The water takes less time to travel from heat exchangers to faucets. It also helps in remaining the constant and stable flow rate of hot water. You will never find fluctuations in hot water. The technology keeps the steady temperature for a long time after switching the button off.

Flow rate quick information:

If the temperature rises at 45 degrees Fahrenheit, it gives 11.2 gallons per minute of hot water. Again if the temperature is at 35 degrees Fahrenheit it will provide 12.2 gallons per minute. The performance is very powerful. It can simply heat the water for 7 or more bathrooms. This Navien NPE-240A Premium water heater is suitable for household or residential and commercial or business purpose.

User-friendly control system:

This Navien NPE-240A tankless gas water heater is one of the simple water heaters to operate. You can set the recirculation mode. The diagnostic button of this water heater is handy for the user to troubleshoot and rectify any minor faults. The whole diagnostic process functions in an automated route. The cascade operation allows showing the information to the user at what temperature the water is heating. For cascade operation, there is the button called the master button. The up and down push buttons help to increase the temperature. The buttons are used to increase the temperature by 1 degree Fahrenheit. At 1 degree Fahrenheit, the range of temperature gets to be 98 degrees Fahrenheit to 140 degrees Fahrenheit. You can also include the remote control for excellent tuning accessory.

navien tankless water heater review

Efficiency tools:

The Navien water heater will not cost you much to run it though it is a high performing tankless water heater. The dual stainless steel heat exchanger is one of the factors for its highly efficient performance. The energy factor it takes is 0.97 which will surely save your bills. It reduces the consumption of energy. The secondary heat exchanger transforms for condensation. The condensation results in additional heat. Therefore the ventilation temperature gets diminished. On the other side, the energy factor increases.

Eco-pre mixed burners:

This tremendous tank-less water heater comes with the Eco-pre mixed burners device. And the eco-pre mixed burners device reduces the emissions of carbon monoxide and nitrogen oxide. The emission reduced by combining the gas heating and air before ignition.

Others Navien Condensing Tankless Water Heater Model:


  • The water heater gives instant hot water on-demand.
  • There is the convertible gas system.
  • The water heater does not emit any harmful chemicals, carbon monoxide or nitrogen oxide.
  • The Navien tankless water heater model has the intelligent pre-heating technology.
  • The flow rate is 11.2 GPM.
  • The condensing gas water heater certified by Energy Star.
  • This Navien NPE-240A has high durability rather than its similar category.
  • The cascading set-up designed to connect 16 units.
  • The whole system of this Navien NPE-240A Premium is for long lasting.
  • This nation tank less water heater can installed both the indoor and outdoor.
  • Highly used in households, residential or commercial purpose.
  • There is integrated control panel with error display.
  • There are many safety features included in this product.


  • This dynamic Navien tank-less water heater needs the proper vent. Otherwise, you don’t get the perfect performance from this unit.
    The model has to vent directly or with a proper channel. The user must analyze the vent system with instruction manual accurately. So that, it goes right.

Frequently Asked Question:

Q: What are its electrical data?

Answer: Navien NPE-240A Premium Condensing Tankless Gas Water Heater requires 120 volts, 1 phase, and frequency of 60 Hertz.

Q: Describe the full dimension for easy understanding?


The chart of dimension is described below:

Gas connection size by inches

3/4 inches

Cold water inlet by inches

3/4 inches

Hot water outlet by inches

3/4 inches

Primary vent pipe diameter by

3 inches

Secondary vent pipe diameter by

2 inches

Product height by

27.4 inches

Product weight by

82 pounds

Product width by

17.3 inches

Product depth by

13.2 inches

Q: What does the product include?

Answer: You will get conversion kit, wall mounting bracket, tapping screw and anchor, 2” vent termination cap and 2” wall flange.

Video: Navien NPE Sample Installation

Final verdict

The Navien condensing tankless water heater is an excellent product that comes at a very affordable price. This Navien tankless water heater price is a very cost-effective asset for the customers which will serve hot water for a long period. The product is very reliable for its features and benefits. The customers are very much satisfied with this NPE-240A premium. Basically, in the top tankless water heater review, we tried to find out the best thing about this special one. So, our team experts recommended this one is most excellent tank less water heater that you can buy to fulfill your hot water demand.

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