Takagi T-KJr2U Review

Takagi T-KJr2U ReviewTakagi has been a graceful supplier of tankless water heaters for years now, providing diversified models for certain specifications. Takagi T-KJr2U is one of its profound models. This model is mostly recommended for residential purposes. This model comes in two types which is very rare. Outdoor and indoor Takagi T-KJr2U models are similar in most ways except for the venting systems. Due to uniqueness in placement, the outdoor model needs venting attachments.

Takagi T-KJr2U weighs 37pounds and is able to supply 2 bathrooms with hot water consistently for long hours. The volume supply of the hot water is facilitated by the maximum gas inputs of 140,000 BTU and temperatures of 10.5 degrees Celsius. This water heater can be used in domestic water tanks, recirculation systems, hydronic heating systems and other domestic water systems. Here’s a comprehensive Takagi T-KJr2U review that should give you an idea what it’s all about.


Takagi T-KJr2U
Check the price
Read Customer Reviews »

-1 to 2 Bathrooms capacity
-Natural gas usage
-Residential warranty of 15-years for limited heat exchanger and 5 years for limited parts
-Energy efficiency of 0.82%
-Maximum flow rate of 6.6 GPM to 9.5GPM
-Remote control in outdoor models as a standard feature
-A remote control and a factory-installed power cord are included in indoor models as standard features
-Safety features
-Compliant with Ultra-Low NOx regulations
-4” Category III Stainless Steel venting
-Vertical or Horizontal Installation
-50’ Max Length, 5 Elbows max (90° elbows = 5’ equivalent length)
-Power Vent or Power Direct Vent
-Electronic Ignition
– 3” Combustion Air Intake (with optional kit)


  • Self-protection with Built-in Freeze Protection with manual reset Hi Limit of up to 194°F, Overheat cutoff fuse, Inlet and outlet thermistors for Constant Temperature Monitoring, Air Fuel Ratio Rod and a Flame Sensor.
  • Uses copper exchanger which has 25x better heat transfer than stainless steel hence stabilizing outgoing water temperature faster and reduces pressure dropping across the heat exchanger.
  • Indoor and outdoor models are available.
  • Other optional accessories like complete line of stainless-steel venting, recess box (outdoor models), pipe cover, direct vent conversion kit (indoor models), isolation Valve Kit, backflow preventer and concentric termination kits are all available for proper installation.
  • Easy to install and use.
  • Can be used by small families.
  • Incoming and outgoing temperatures of water can be regulated.
  • It works quietly and if it has irritating noise, there is probably something wrong with pressure.
  • Perfect for a renter.


  • The Takagi T-KJr2U is highly priced.
  • One has to wait for water to warm

Customer satisfaction

Takagi T-KJr2U Review

Takagi T-KJr2U is ultimately built with the user’s experience in mind. This is clear in the many reviews of customers updating their thrilling experience. It all starts during installation which is quite a struggle as many rethink the idea of getting a licensed installer to do the job. It is mostly a cost issue but the moment they install it, they start documenting their flawless experience with the heater. Takagi T-KJr2U is greatly advantageous for those who need small-scale water heating. Many people use it in small space rentals due to their portability and low risk of security in case one wants to move. It is not on the large-scale part where one feels like they are still using the traditional tanks. It provides you with the heating you need at the right time, with the right budget. In case you want to add another unit because your needs have risen, you simply go and purchase another one. Some customers claim to have each for specific hot water needs i.e kitchen and bathroom use. When you need small scale and convenient supply of water in your home, this is a go-to model that’ll save you tons of money as well as a headache of reinstalling new machines. It is durable and although at first it can be expensive due to installation with extra purchased accessories, it eventually claims the money back with a great energy saving system.

Common Questions Asked

1.Do I Really Have To Hire A Professional Installer?

Takagi T-KJr2U Review
Check the price
Read Customer Reviews »

Yes, you should. In case you don’t, you won’t be compensated even with a legitimate defect of the machine. This is because the warranty will be voided.

2.Isn’T Hiring A Licensed Installer Expensive?

It could be, depending on your budget but it is the best way to prevent complications in future. If you install the unit without a licensed installer you won’t be able to get compensated in case of any malfunctions. That will cost you more than following the policies.

3.Is This Unit Durable?

Yes it is. It’s long years of warranty guarantee it.

4.Does This Unit Have The ‘’Cold Water Sandwich’’ Problem?

Yes. This is a normal problem among heaters so it’s advised that you open the water outlet and wait for a few seconds before letting your skin feel it.

5.Is This Unit Noisy?

No. It works quietly but some slight sounds in specific circulation instances is normal. However, if you hear unusual irritating noise, call your plumber as there could be a minor defect that should be rectified.

Final Verdict

This Takagi T-KJr2U review has weighed facts as well as subjective reviews and one thing is clear. Takagi T-KJr2U is specific in its usage in that it suits small families which do not have numerous hot water uses. It is compact, efficient and most importantly, delivers what it claims to do for a user. It is clear that, despite its minor flaws, this is a reliable small-scale use tankless water heater.