Takagi T-KJr2-IN-NG Tankless Water Heater Review


If your home is powered by natural gas or propane, and you are faced with having to replace your hot water heater, it is highly recommended that you consider a gas-powered tankless water heater. Your traditional water heater is incredibly wasteful as it comprises a huge tank of water that must be kept hot at all times—whether or not you need hot water or not.

With a tankless system, you get on-demand hot water, without the need to keep a huge tank of water hot, even when it isn’t needed. In essence, a tankless water heater utilizes a coil or hot plate to heat the water as it is requested when you turn on the hot water tap. This allows you to save as much as half on your hot water costs through improved energy efficiency and reduced waste. These systems cost a bit more at the outset, but they last about twice as long, meaning that the system will pay for itself multiple times over.

Things to consider when buying a gas powered tankless water heater

First and foremost, when choosing the right tankless hot water heater for your needs, you will need to know what price range you are working within. Setting a budget ahead of time makes it much easier to narrow down and eliminate any options that are outside of your budget.

You will need to determine how high of a flow rate you need the unit to be able to accommodate to be able to keep up with your needs. While it is a bit more complicated than this, it is a good estimate for the water heater that will be best for your unique needs. To determine this, you will need to make a list of all the appliances in your home that use hot water;determine the average flow rate required of these appliances, and then total these numbers. The final product will give you a good starting point for choosing the right heater.

It is highly recommended that you have the system installed by a professional, especially in the case of a gas-powered hot water heater. It is complicated and can even be dangerous. Depending on the age and design of your home, you may need to have additional gas lines run in your home and may also need some minor plumbing work to make your home suitable for a tankless hot water heater. If you have a good bit of technical and handy knowhow, you may be able to tackle this on your own, but it is definitely not a project for the weekend warrior.

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater

Takagi is a trusted and highly reputable company that makes a range of tankless water heaters, as well as the various components and accessories that you might need to install one correctly and safely. The T-KJr2-IN-NG Indoor Tankless Water Heater is well built and a great value for those who are looking for a reliable gas powered tankless water heater.

The unit is 140,000 BTU with inlet and outlet thermistors that allow for continuous temperature monitoring. It is Energy Star rated for efficiency, so you are likely to notice utility savings almost immediately after installation.

The unit boasts a 6.6 GPM (gallons per minute) flow rate, making it well suited to most common household needs. It is well designed and constructed from the highest quality materials to ensure that the unit stands the test of time.

This gas-powered tankless water heater comes with a 10-year warranty on the unit’s heat exchanger and a 5-year warranty on parts, giving you peace of mind that your heater will hold up and be covered in the event that something goes wrong.


If you are concerned with efficiency and want to reduce the amount of energy it takes to run your various utilities, tankless water heaters are a great option. If your home is powered by propane or natural gas, you will need to select a gas-powered tankless water heater. The Takagi model we describe here is a great choice for families with average hot water needs. It is affordable to purchase, and is designed to last. Built with high-quality materials and a quality design, this heater comes with a powerful warranty to back it up.

Takagi T-KJr2-IN-NG

Takagi T-KJr2-IN-NG


8.5 /10


9.0 /10


  • 3/4 inch connections for higher flow rates
  • frost guard and shuts down automatically when overheating occurs
  • air-fuel ration sensor to improve efficiency and lower emissions


  • can be expensive to install

Leave a comment