Takagi T-KJr2-OS-NG Outdoor Tankless Water Heater

There is a lack of compact water heaters in the market that is cost effective with good performance. For this point of view, takagi has made a system that will be compact followed by the best performance for delivering hot water on demand. Takagi T-KJr2-OS-NG Outdoor Tankless Water Heater is that system which will provide unlimited hot water for shower, washing and other usages in more than 2-3 bathrooms by multiple applications. Very much suitable and appropriate for outdoor installation. The maximum flow rate of this Takagi T-KJr2-OS-NG is 6.6 gallons per minute (GPM) with 0.82 energy efficiency factor. As a result of flexible flow rate, it can heat the water density to perfect level. It functions smartly with less use of energy by providing best service of hot water on demand. Takagi is a very experienced company that is manufacturing innovative and user-friendly water heaters for more than 70 years and their many objectives are to fulfill its customer's demand.

Takagi T-KJr2-OS-NG Outdoor Tankless Water Heater, Natural Gas

Its stunning features are:

  • Steady flow of hot water on demand and instantly for long time defined as endless hot water technology.
  • It will give best service to one bath homes in cold climate areas, apartment, condo, summer cabins and many others.
  • The British thermal unit (BTU) maximum is 140000 and minimum is 19500 per hour of this Takagi T-KJr2-OS-NG.
  • This tankless gas water heater uses natural gas for its functioning.
  • The inlet gas pressure minimum and maximum in W.C. should be 4.0 and 10.5.
  • Uniform energy factor (UEF) is 0.79.
  • The water flow rate maximum takes up to 6.6 GPM.
  • National Pipe Thread is usually required ¾” NPT for hot/cold and gas connections.
  • This outdoor gas tankless water heater dimension is 6.7 x 13.8 x 20.3 inches. This dimension tells the height, width and depth. Side by side its weight is 38 pounds.

Details of the above features:

Small and helpful device:

In Takagi water heaters line up this unit is the smallest and will provide you with an exceptional and outstanding performance for its compact size and quick hot water delivery. At the same time, it is easily installed by matching with your home interior.

Temperature related activity:

At 30-35 degree Celsius temperature rise Takagi T-KJr2-OS-NG Outdoor Tank less Water Heater maximum flow rate is 6.6 GPM. Gas pressure inlet minimum is 4.0 W.C. and maximum 10.5 W.C. which is very diverse and efficient to take the heat pressure. The water pressure in PSI is 15-150, requires reliving valve for its pressure (minimum 140000btu/hour, 150 PSI) for maximum. The ultimate start up flow rate is 40 or over PSI is recommended.

High work performance:

By using less energy this best tankless gas water heater delivers endless hot water by using BTU per hour and its effective temperature control system. It takes UEF 0.79 for energy factor measurement.

Followed by remote control device:

This Takagi T-KJr2-OS-NG tank less water heater is fully controllable by remote where it shows the temperature for monitoring the gallons per unit. Most of its basic function is controllable by remote and this is considered as standard utilization.

Environment friendly with compact size:

It takes the small amount of energy or natural gas to perform its actions for the user to give hot water on the instant. It cuts off your bill and saves the energy, money, and space. The size is very well compact and condensed with nice wiring device, heat exchangers, valves & remote, temperature and pressure segments with many more activities during heating process takes place.

Energy saving feature:

This Takagi T-KJr2-OS-NG water heater unit comes with a self-modulating sensor system which senses the water flow more than 0.75 gallons per minutes and let the burner start to heat water. This unit relational gas valve heats up after sensing the water flow. Resulting in it automatically saves power consumption when it is idle and the ultimate resulting is that it gain the capacity to reduce cumulative electricity bills.


Takagi T-KJr2-OS-NG specification

Other Gas tankless outdoor water heater you can buy:

There are some other gas tank less water heater in the market that also you can choose to buy. These are like: Rheem RTG-84XLN, Eccotemp L10, Rheem RTG-64XLN and so on. These are also the best category gas water heater in our expert eye. Because these heater has the perfect features to serve you the best performance regarding to provide instant hot water.

Advantages of this outdoor tankless water heater:

  • It is the best tank less gas water heater which is overall very cost efficient in terms of pricing, plugging, energy usage, screwing and others.
  • The heater is systematically devised with safety and security inputs for the protection of the user like air fuel ratio sensor (AFR), freeze protection, high limit switch, and over heat cut off fuse.
  • Highly durable for long period of time as it has copper heat exchanger, drum thickness for input devices and commercial grade copper alloy for proper exchange of heat and control over performance.
  • Can easily manage the emission of chemicals or gases through the system by emitting very Low NOx on air.
  • Cool and very supportive Takagi T-KJr2-OS-NG Tankless Water Heater gives warranty benefits of residential- 12 year heat exchanger, 5 year parts and 1 year labor.
  • Eye-catching customer ratings are 4.4 out of 5 stars in Amazon customer reviews.

Disadvantages with real solution to be executed:

  • In case of rain it should be covered as it is outdoor it will take a small sum of money to make that cover up by a skilled worker.
  • It is a bit smaller by looks but works very efficiently and will sure fulfill your demand of hot water at any cost.
  • This tankless heater unit is very much suitable for warmer climatic areas and places. Again mild climate areas can also be included in this.

Frequently asked questions:

Q: What are the benefits in small apartments?
It will provide hot water for 2 bathrooms and kitchen with multiple applications, instant flow of warm hot water, no more waiting for hot water and compact size to install outside.

Q: Why it should be installed properly?
With a professional plumber it is vital to install efficiently with its correct plugging so that nothing occurrence like- not working properly or any coincidence happens. You can get sufficient detains in the user manual.

Q: Can it seriously reduces the gas bill?
Yes of course, the manufacturer has made the device very power saving tool for your gas bill cut off. The UEF is about 0.79 which sounds cool.


By following the overall issue with this Takagi T-KJr2-OS-NG Outdoor Tankless Water Heater it can be easily said that this particular water heater is a tremendous product for the people to get the benefit of hot water regularly and by user choice. The advantages and features of this tankless gas water heater reviews are so unique that it cannot be compared to other heaters. This tremendous Takagi T-KJr2-OS-NG going through a huge demand in the market for its tankless facility, compact and condensed size, instant hot water functions and durability and use able for long period of time.

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