REVIEW Water Heaters

Takagi T-KJr2-IN-NG Review – Best Indoor Tankless Water Heater for Home

Are you searching for a high-quality water heater that is tankless? Or looking for one that comes with desirable features? The Takagi T-KJr2-IN-NG can offer you both.  It is designed for indoor use and is considered as the smallest model under this line.

Takagi T-KJr2-IN-NG

Pros and Cons of Takagi T-KJr2-IN-NG


  • Convenient size
  • Very affordable
  • Consistent flow rate
  • Designed with all safety precautions right in place
  • Advanced switches in operation


  • Expensive installation
  • Not ideal for a huge family

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Before finally deciding on purchasing this model, it is important to be well aware of the features that are built-in with it. This will help you make a good decision in the end.

Features and Specifications of Takagi Tankless Water Heater

Here are some of the features and specifications of the T-KJr2-IN-NG Water Heater:

  • Temperature Check

The temperature check control of this system makes sure that the water passes through the thermistor chambers. These chambers ensure that the temperature is kept in check all the times.

This feature is also considered as one of the best under this line, ensuring that the apparatus of the system shuts automatically when the temperature reaches the peak limit. As such, this ensures that the product stays damage proof and stable.

  • 40-Gallon Capacity

The supply line of this heating unit is similar to that of an actual 40-gallon water heater. The required space in the installation of this unit is minimum, thanks to its small size. Despite its size, this water is quite efficient, with a maximum performance yield.

  • Gas Output

The Water Heater model does not require the use of electricity because it works on natural gas that comes with an input between 19500 and 140,000 BTU/h. With this capability, you can trust that this system can provide upon any demand.

Unlike other heaters where there is a need to wait before the heating starts, this unit beats all odds in making sure of a constant hot water supply anytime there is a need.

Takagi T-KJr2-IN-NG


  • Flow Rate

This unit also comes with a flow rate of 6.6 GPM of water.

This flow rate will provide the assurance of a steady supply of water. Other models typically limit the activities of a water heating system because of a delay in the flow. This model, however, ensures a good flow, thus giving enough supply of hot water for the entire household.

  • Inlet and Outlet Thermistors

This feature of this unit is quite distinguishable from other models. One advantage of having inlet and outlet thermistors is the capability of ensuring temperature monitoring, keeping its consistency.

Despite the fact that other heaters offer various temperatures because of the continuous water flow, the Takagi T-KJr2-IN-NG maintains consistency in temperatures while eliminating any type of temperature deviations.

  • Energy Factor

This water heater is also equipped with an energy factor that makes sure of a regulated power consumption while providing maximum service at the same time. For users to experience ultimate results, this water heater comes with a 0.81 to 0.83 energy factor, playing a huge role in the popularity of this model.

  • Vent System

This unit also comes with a 4-inch stainless steel vent. This means that durability is an assurance with this model. It also keeps rust out of the picture while using this water heater.

Takagi T-KJr2-IN-NG


Takagi T-KJr2-IN-NG vs. TakagiT-H3-DV-N

Both the T-KJr2-IN-NG and T-H3-DV-N are models under the Takagi brand. As such, quality is an assurance. However, the primary difference between these two models are evident in the price. The T-KJr2-IN-NG model is half the price compared to the more advanced T-H3-DV-N. This difference in the price has something to do with the inclusion of computerized safety features of the latter model.

The T-KJr2-IN-NG is the ideal option for smaller households. It is built with durability in mind, that is, up to 10 years. The installation is easy, and can even save you money if you choose to install it by yourself, following the instructions in the accompanying manual.

Click here to Check out Takagi T-H3-DV-N

User Reviews of the Tankless Water Heater

The Indoor Water Heater is received positively by most users. While there are others who also presented their doubts, most of the feedback were good.

One customer highlighted the fact that this unit is very easy to install. Some say that the installation process can be costly, only if you hire another person to do the labor. However, the package comes with an instruction manual. Like what the customer did, by following the instructions accordingly, he was able to save a good amount of money on installation.

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Another customer mentioned that he really liked the fact that this unit is small and light. He even considered it as a ‘feat of engineering’ because it is designed in a way that can provide more than 6 gallons of water per minute of hot water consistently.

Takagi T-KJr2-IN-NG


On the other hand, there were some ‘complaints’ as well. One particular customer reported that he spent hundreds of dollars during the installation with the help of plumbers. After the installation, there were some issues with the flow shutting off from time to time. This issue can be fixed by going back to the installation procedure. As long as everything is followed according to the instructions, this problem will not happen.

Final Thought

The Takagi T-KJr2-IN-NG is a dependable option for a water heating system that can be installed at home. If you are not a plumber yourself, you may have to shed a good amount of money at the start, but if you take into consideration the benefits that you can get out of it, in the long run, this is actually a good option for you. With its energy star certification, this product is a perfect representation of an eco-friendly equipment.

If you are looking for a new water heater or planning to upgrade your existing one, the Takagi  Indoor Tankless Water Heater is a good investment for your money. The maintenance cost is relatively low, and it is also equipped with dependable features.

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