Takagi Water Heaters 

10 Best Takagi Water Heater Reviews

Best Takagi Tankless Water Heater Reviews 2019

Takagi tankless water heaters are the best way to get hot water on the spot. These devices are solid and versatile, made for a long lifespan. It can heat water with the minimum amount of energy, and then you can turn the heater off once you’ve got your warm water. This will make you save on the electric bill notably. Many of the Takagi tankless models are fitted with four adjustments and a remote, which will help you set the temperature at ease. They also come with many safety additions that will make you feel more confident when using it. Takagi make their tankless water heaters under high quality standards, which is why they give with them up to a 15-year warranty.


Takagi T H2 DV

The Takagi T H2 DV is the perfect deal for people looking for a versatile water heater. It is an eco-conscious tankless model that runs on the minimum amount of power. It will give you uninterrupted hot water on the spot. It guarantees a continuous hot water supply without oscillations. The Takagi T H2 DV is fitted with several awesome features whose objective is to keep the system safe. Some of these are the overheat monitor, air controller, high limit switch, flame monitor, thermistors, among others. Some of them prevent it from freezing when the environment temps are too cold. The key feature of this model is its compatibility with a direct vent system. It comes with a 15-yaer warranty on the heat exchanger.


  • Low pollution
  • Very efficient
  • Highly effective
  • PVC build
  • Pre-set temp


The TAKAGI T-T-KJR2-OS-LP is a solid, highly efficient tankless water heater for outdoor installation that is great for small houses and radiant heating. It is a powerful device that comes in a small size. It provides up to 140,000BTU an hour. That is enough to satisfy your hot water demands. The TAKAGI T-T-KJR2-OS-LP was made for residences with up to two baths. It is the littlest model made by Takagi and is fitted with a commercial-type exchanger that is made of HRS35 copper alloy. This exchanger can make use of the home circulation and the environment heating. It is also suitable for light commercial purposes.


  • Anti-freezing system
  • Ideal for small-sized houses
  • Powerful
  • Efficient consumption


The TAKAGI T-H3-DV-N is a condensing unit, a tankless water heater that feeds on natural gas and consumes it efficiently. It can deliver up to ten gallons in a minute. It performs effectively and provides a steady flow of hot water for up to four baths. Its condensing system makes it perfect for people that have hypersensitivity to sound. It is made to be installed indoors, because of that the NOx emission is really low. Beside most tankless models, the TAKAGI T-H3-DV-N takes up too little space. The design of this unit is very compact, only requiring one foot of room. Another key feature of this model is the PVC vent.


  • Very effective
  • Delivers 10 gallons of water per minute
  • Small
  • Needs little space
  • Low gas emission
  • PVC vent
  • Strong and long-lasting components
  • Great consumption efficiency



The fact that it is the littlest and yet most powerful model by the brand makes the T-KJR2 indoor natural gas tankless water heater the best option for radiant floor systems for small-sized houses. It has a gas intake of about 140,000BTU per hour which allows it to deliver enough hot water for an entire house with one or two baths. Thanks to its high limit of water flow at 6,6 GPM, it outdoes by far a conventional 40-gallon tank water heater. When it comes to ease of use, there’s no doubt that it is easy to read and control with its well laid out switch system.

Takagi T-KJr2-IN-NG review

One of the key features of the T-KJr2-IN-NG is the fact that it doesn’t rely on any tank that would restrict its use to the amount of stored water. This way, the time of use and water flow are virtually endless, and you get hot water on the spot. Also, Takagi’s tankless models mostly provide a flow rate of about 500 gallons per hour. Owning a high-tech heating device like this, you are granted with an endless provision of hot water for several applications, for home or for your business. Actually, the water delivered by this unit can supply hot water systems for household use such as radiant heating, recycling systems, water storing, and so on. The reason why most customers feel fully satisfied by the T-KJr2-IN-NG is not precisely because of its safety additions like surge security, overheat monitor, anti-freezing system, or accurate diagnosis program. It’s rather for its affordable price that won’t break your budget.


  • Small design that is made to fit anywhere
  • Quite more affordable than most water heaters
  • Continuous and limitless flow rate that can supply an entire house
  • Fitted with a lot of safety additions


  • Installation is slightly expensive
  • Not suitable for large families



High cost-benefit ratio and very environmentally thoughtful, the T-KJR2 indoor propane water heater was launched by Takagi to be a high-quality heating device. Besides delivering hot water for the entire hose and coming with installation fixtures, this advanced water heater can supply radiant floor systems. It has an unbeatable design that fits anywhere and can be installed in little time. With a temp capacity of over 150°F, it is perfectly compatible with any other propane-powered tankless unit. That’s to say it provides hot water for both your dishwasher and your bath. If you live in a warm area, you will probably get a water flow rate at 6,6 gallons per minute that is more than enough to supply your kitchen applications and your bathroom at a time.

Check prices of the best Takagi Tankless Water Heaters

T-KJr2-IN-LP will also work great in cold zones. For instance, if the temperature of the incoming water is lower than 40 degrees, this device is designed to supply a amount of about 174 gallons per hour. It also has four preset temps which are 113, 122, 131, and 140 Fahrenheit degrees. In these cases, what people usually do is adding a TK-TV10 Direct‐Venting Conversion Kit. This turns the standard vent system of the device into a sealed burning system. This way, the unit will take the air directly from the environment where it is mounted. The controls are composed of a series of switches which make its operation as simple as possible to make any adjustment. Installing it is a breeze. It is powered by liquid propane and has internal burners. The set-up process requires a flow pump, 110v outlet, venting kit of category 2, and ground cables. Ok, so go for this high-tech tankless model and have it installed right away at the best price.


  • Quite affordable. Won’t hurt your wallet
  • Small, fits anywhere, and it is easy to install it
  • Very easy to operate and to adjust temperatures


  • Not the best choice for a huge family
  • It can get a bit slow with many applications at the same time



Lucky for us, we won’t have to wait the whole morning for the desired hot water anymore thanks to the Takagi T-K4-OS-NG. This tankless heater is full of high-tech features. It has a monitor that controls the proper functioning of the burners, thermistors and micro-processors. The heating process will be constantly monitored. Also, gas input and water flow will be automatically modulated. The hot water is checked by the internal system. Anyway, it has the job of shutting off the system when something goes wrong. And you will find out with a LED lamp. “Error” will be displayed on the remote control, which makes its diagnosis way easier.

Takagi T-K4-OS-NG Review

Natural Gas Tankless Water Heater review

As we already said, it adjusts the temp by itself. Along with that, it runs in a range of 11,000 to 190,000 BTU. Fitted with 0,83 power effective, it is Energy Star approved. Thanks to its automatic system, this unit can be used at any environment temp and water flow rate. At 8GPM, it delivers enough hot water to supply four baths at once. It has a temperature range that comes from 99°F to 167°F. Actually, you can set the temp between 113 to 140°F. It is also fitted with several safety additions. Anti-freezing system, for instance, that protects it from freezing environment temperatures. If by chance the temperature in the outside descends under 36, the system turns off immediately. Also, it has an in-built cutoff fuse that prevents the unit from overheating. So, buy this magnificent product now and get the best value for your money.


  • Auto-adjustable, it runs at 11,000 to 190,000 BTU per hour
  • Easiest way to adjust the temperature with a remote control
  • High water rate of 8 gallons per minute


  • It will take you some time to get your hot water

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