Takagi Tankless Water Heater Reviews in 2022 – Top Picks

There are a few unique features of Takagi tankless water heaters in 2022. They are particularly designed to meet the peak flow rate requirements. If you own a home or company, this system is perfect for you. Moreover, they are also capable of handling extreme fluctuations in temperature. 

What makes Takagi different from other tankless heaters is its optimal safety feature, high-quality structure, and low maintenance requirements. Another of Takagi’s accomplishments is that tankless water heaters now have a 95 percent thermal efficiency rate.  Direct vents are also included in the indoor models to further reduce energy usage.

Wall-mounted storage options provide you with more flexibility and storage space at your home or in your office. Therefore, there will be no waste of space.

When selecting a water heater, check the specifications before making a purchase. 

At a Glance:

There are plenty of modern heaters on the market. Takagi is unique among its competitors due to its eco-friendly and enhanced safety measurements. Let’s have a look at takagi tankless water heater reviews. 

Our Recomendation for Takagi Tankless Water Heater Reviews

There is a list of the Takagi Tankless Water Heater that is energy efficient and provides intense hot water.

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Takagi natural gas tankless water heater reviews
Best Pick1. Takagi T-H3-DV-N Natural Gas Indoor Tankless Water Heater
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Takagi condensing tankless water heater reviews
Staff Pick 2. Takagi T-H3M-DV-N Condensing Direct Vent Tankless Water Heater
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Takagi indoor tankless water heater reviews
Budget Pick 3. Takagi T-KJr2-IN-NG Indoor Tankless Water Heater
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Takagi t-k3 tankless water heater reviews
 4. Takagi T-K3-N Natural Gas Tankless Water Heater
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Takagi tankless hot water heater reviews
 5. Takagi T-K4-IN-NG Indoor Tankless Water Heater
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Condensing Units

The Takagi condensing units feature copper and stainless steel heat exchangers, which are more corrosion-resistant than any conventional material. As a result of this heat exchanger, there is an increase in energy efficiency as well as a decrease in operating costs for the units.

1. Takagi T-H3-DV-N Natural Gas Indoor Tankless Water Heater

Best Pick

Takagi natural gas tankless water heater reviews

Takagi T-H3-DV-N Condensing Tankless Water Heater
Takagi T-H3-DV-N Condensing Tankless Water Heater
Item Weight :‎59 pounds
Product Dimensions :‎11.25 x 17.75 x 24.88 inches
Color :‎White
Power Source :‎Gas-Powered
Voltage :‎120 Volts
Flow Rate :‎10 Gallons Per Min

T-H3-DV-N is perfect for small restaurants and beauty salons as well as residential/commercial projects.

Flow Rate

It offers 10 GPM which is sufficient to handle large homes and medium-sized homes even in the colder regions. This unit is compact even when flowing high amounts of water, which saves on space. 

Temperature Range

With this model, you can set the temperature up to 185 degrees Fahrenheit, significantly higher than other models. Remote control or console controls are available for managing temperature, as well as error codes.

Energy Star Certified

The energy factor of T-H3-DV-N is 0.93. Choose the outdoor model if you want even more energy efficiency which is 0.95. Another benefit is that this appliance is energy star certified.

Pros

  • Endless hot water
  • On-demand usage
  • Compact design
  • Space-saving
  • Energy conservation

Cons

  • Takes time to heat water

2. Takagi T-H3M-DV-N Condensing Direct Vent Tankless Water Heater

Staff Pick

Takagi condensing tankless water heater reviews

Takagi T-H3-DV-N Natural Gas Indoor Tankless Water Heater
Takagi T-H3-DV-N Natural Gas Indoor Tankless Water Heater
Item Weight :‎44 pounds
Product Dimensions :‎17.75 x 13.12 x 29.5 inches
Power Source :‎Gas Powered
Voltage :‎120 Volts
Flow Rate :‎6.6 Gallons Per Min
Certification :‎Energy Star

It has the capability of supplying hot water to household hot water systems, including storage tanks, recirculation systems, hydronic heating systems, radiant flooring, and both domestic and basic heating systems.

Flow Rate

It offers 10 GPM which is sufficient to handle large homes and medium-sized homes even in the colder regions. This unit is compact even when flowing high amounts of water, which saves on space. 

Temperature Range

With this model, you can set the temperature up to 185 degrees Fahrenheit, significantly higher than other models. Remote control or console controls are available for managing temperature, as well as error codes. 

Energy Star Certified

The energy factor of T-H3-DV-N is 0.93. Choose the outdoor model if you want even more energy efficiency which is 0.95. Another benefit is that this appliance is energy star certified. 

Pros

  • 120,000 BTU gas input capability
  • For smaller families, this heater is ideal
  • Has anti-freeze technology built-in
  • Featuring stellar hydronic heating systems
  • Controls exhaust and water temperatures for safety

Cons

  • Occasionally, it becomes noisy

Non-Condensing Units

Among the Takagi appliances, non-condensing units are the least expensive. The efficiency of all these models is good.

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

Budget Pick

Takagi indoor tankless water heater reviews

Takagi T-KJr2-IN-NG Indoor Tankless Water Heater
Takagi T-KJr2-IN-NG Indoor Tankless Water Heater
Item Weight :‎37 pounds
Product Dimensions :‎6.7 x 13.8 x 20.3 inches
Power Source :‎Gas Powered
Voltage :‎120 Volts
Certification :‎ENERGY STAR

In Takagi’s product line, the T-KJr2 is the smallest heater. It is perfect for use in light-duty residential applications (i.e. small apartment units) and radiant heating.

Flow Rate

In average-size homes, this indoor water heater offers 6.6 GPM, making it a good choice. During hot weather, this flow rate enables four low-flow showers to run simultaneously. On the other side, the flow rate can drop to anywhere between 3 and 5 GPM in colder climates.

Compact Design

Since the T-KJr2-IN-NG has a compact design, no huge space is needed to install the heater. With its sleek shape and lightweight design, this unit can be easily placed in a closet or mounted on the wall.

Digital Remote Control

You don’t have to worry about adjusting the heater frequently once it’s set up. It can be switched on and off with the digital remote control. Additionally, the temperature can be changed by using the remote control, which can reach 150 degrees Fahrenheit. 

Self-Modulating Sensor

Using a self-modulating sensor, the water flow can be sensed if it exceeds 0.75 gallons per minute, and the burner can be activated for the purpose of heating the water.

Pros

  • They are quite affordable and not at all expensive
  • It is environmentally safe and is eco-friendly
  • The constant flow of hot water
  • 6.6 GPM max flow rate

Cons

  • The gas line must be strong
  • It seems complicated to install

4. Takagi T-K3-N Natural Gas Tankless Water Heater

Takagi t-k3 tankless water heater reviews

Takagi T-K3-N Natural Gas Tankless Water Heater
Takagi T-K3-N Natural Gas Tankless Water Heater

Takagi T-K3 can also easily be converted from indoor to outdoor use, even though it is designed for indoor use.

Flow Rate

It offers 6.6 GPM. Due to its higher flow capacity, a parallel connection can provide hot water to most large projects that require a large amount of water, including residential applications and commercial ones. 

Temperature

The performance of the T-K3 depends on the groundwater temperature. In winter, when groundwater is 60°F and the desired is 1220°F, the T-K3 can produce 324 gallons per minute or 5.4 GPM. 

In colder parts of the country, where input temperatures may be as low as 40 degrees F, the flow rate may be around 4.1 GPM or 246 GPH.

Power Vent

With its powered ventilation, it can be installed in confined spaces where there is no access to air because its sealed combustion ensures that it will not leak.

Pros

  • Eco-friendly certification
  • Small and compact
  • Reduced Activating Flow Rate
  • Parallel Installation

Cons

  • Extreme usage leads to flow delays

5. Takagi T-K4-IN-NG Indoor Tankless Water Heater

Takagi tankless hot water heater reviews

Takagi T-K4-IN-NG Indoor Tankless Water Heater
Takagi T-K4-IN-NG Indoor Tankless Water Heater
Item Weight :‎43 pounds
Product Dimensions :‎8.5 x 13.8 x 20.5 inches
Color :‎White
Power Source :‎Gas Powered
Certification :‎Energy Star

Compared to the other one, this one is a little bit more powerful, ranging between a minimum of 19.5k BTU and a maximum of 190k BTU.

Flow Rate

This model is perfect for the average-size to large size homes since it has a GPM of 8 gallons per minute, especially in hot climates. It is possible to run multiple applications at the same time.

Efficiency  

With a 0.82 energy factor, it is energy efficient and saves on electricity, and reduces electric bills. There is also an outdoor version, which offers comparatively lower energy efficiency of 0.79.

Easy Installation

Its unique feature is that it can be installed either vertically or horizontally, depending on the amount of free space you have available. Moreover, installation is easy. 

Remote Control

Remote controls are available for a number of Takagi models. T-K4-IN is one of these models. However, you will have to pay more money for it.

Pros

  • Frozen, overheated, and surge-protected
  • 80% energy efficient
  • 8.0 GPM max flow rate
  • 12-year warranty on heat exchanger

Cons

  • Customer service is not good
  • Damage parts are not replaceable

About Takagi: Where are they made?

The Takagi tankless water heaters industry is dominated by Japanese brands. And Takagi is one of them. For more than 70 years, Takagi has been manufacturing high-tech appliances. As a result of its late entry into the United States market in 2010, Takagi is not as famous as the other companies.

  It formed a business relationship with AO Smith, the renowned manufacturer of water heaters. There are few differences between standard AO Smith tankless models and Takagi models, except for their brand names. 

Types of Takagi Water Heaters

Takagi provides tankless water heaters that can be used throughout the house and are gas-fueled. Many of the Takagi tankless units are either fueled by natural gas or propane. Others are available exclusively in natural gas.

 For residential useTakagi water heaters are available in two varieties: 

  • Condensing units
  • Non-condensing units

First of all, Takagi’s smallest water heaters are suitable for 1- or 2-bathroom homes. They are capable of providing up to 120,000-160,000 BTUs of power and a maximum flow rate of 6.6 GPM. These models are:

  • TK-160X3P
  • TK-110C and TK-110U
  • T-H3J-DV and T-H3J-OS
  • T-H3M-DV and T-H3M-OS

Next, this mid-range Takagi water heater is well suited for homes with 2-3 bathrooms  (or 2-3 showers). Delivering hot water at a flow rate of 8 GPM with their maximum power ranges from 180,000 to 190,000 BTU.

  • TK-180X3P
  • TK-310C and TK-310U
  • T-H3S-DV and T-H3S-OS

Lastly, for large homes (4 bathrooms or 4 showers), Takagi provides the largest tankless models. Luckily, maximum power of 199,000 BTU can be produced, and a maximum flow rate of up to 10 GPM can be obtained. 

  • TK-199X3P
  • TK-510 C and TK-510U
  • TK-540P
  • T-H3-DV and T-H3-OS

Aside from manufacturing residential water heaters, the company also produces commercial water heaters. On average, most of the models are less expensive than their industry counterparts. However, propane models may sometimes be more expensive than natural gas units. Similarly, outdoor heaters are pricey as compared to indoor heaters.  

Takagi Tankless Water Heater Reviews from Consumers

As far as the customer’s satisfaction is concerned, it is reported that most Takagi water heater customers are very happy with their purchases. Their flow rate and temperature rise are tremendously great and ensure an endless supply of hot water.  

According to the customers’ reviews, there is no doubt that switching from a traditional tank water heater to a Takagi tankless unit has made a big difference.

Customer Service for Takagi Heaters

According to Takagi, the company aims to satisfy its customers as much as possible. A variety of customer support services are offered by the company to address tankless heaters’ issues. On the company website, you can find a variety of resources, such as manuals, plumbing diagrams, owners’ guides,  warranty information, FAQs, troubleshooting the issues, repair and maintenance instructions clearly. 

In addition, there is a list of HVAC professionals willing to work on Takagi near you that you can consult. Service representatives are available to customers, professionals, and wholesalers via telephone, email, and live chat. 

Warranty for Takagi Heaters

Takagi offers excellent warranties that will be run upon certified installation. Let’s take a deep look.

The heat exchanger on all Takagi water heaters is covered by a 15-year warranty. Both copper and copper–stainless steel alloy heat exchangers are affected by this. This warranty is definitely higher than the conventional 12 years warranty. 

In addition to this, Takagi offers a five-year parts warranty on general parts.

One-year warranty on labor (This is a standard warranty). 

A commercial warranty lasts only 10 years.

Prices and Installation of Takagi Water Heaters

Various local and online vendors offer different prices for each model when it comes to Takagi pricing. Compared to natural gas models, propane models might be more expensive. It is also possible costs can vary for outdoor and indoor models while outdoor models are expensive.

Some retailers charge for ground shipping, but many sellers offer it for free.

The price range starts from as low as $490 and goes up to $1225 almost depending on the tankless models and the features it brings. 

  •  According to several factors, the gas water heater installation cost ranges between $1,000 and $1,500:
  • Setting up new gas lines
  • Installation of a recirculation pipe to provide hot water more quickly
  • Material and venting methods
  • Removing and discarding an existing unit

Takagi suggests that installation should be performed by a professional. Otherwise, the warranty will be voided. In addition to preventing injuries from shock, gas explosions, and carbon monoxide leaks, hiring a licensed contractor can help reduce the potential for injuries.

Takagi Tankless Water Heater Troubleshooting, Repair, and Maintenance

It has been noted that Takagi tankless heaters are easy to maintain and require little repair or maintenance over the years. It is recommended that a few minor maintenance tasks should be done at least twice per year to ensure that the system is trouble-free. Professional service providers should be consulted for internal troubleshooting.

Fortunately, there are no serious mechanical problems with Takagi water heaters. It is estimated that only 10 percent of users suffer from issues in the first 10 years. Most of these problems are the result of faulty installation. When you hire a licensed professional for installation, you can completely avoid such problems.

In addition to maintaining your tankless heater, you can avoid many issues. In order to ensure they are working properly, Takagi units need regularly scheduled maintenance and inspections. The system doesn’t require any additional maintenance.

Where to Buy Takagi Water Heaters?

A majority of the models listed above can be purchased on Amazon. Other popular water heaters from Takagi can also be found there, as well as similar models. Additionally, these models can also be purchased with propane or in outdoor versions. 

Frequently Asked Questions

Are Takagi water heaters good?

Getting instant hot water is a breeze with Takagi tankless water heaters. In addition, many customers reported high-temperature rises and excellent flow rates. Takagi tankless water heaters make a huge difference in terms of reducing utility bills, according to many homeowners. 

Who makes takagi tankless water heaters?

Takagi is a Japanese company just like Navien, Rinnai, and Noritz. With more than 70 years of experience making innovative appliances. The company came to the US in 2010 in partnership with AO Smith, a respected manufacturer of water heaters. 

Conclusion

Takagi provides an environmentally friendly, inexpensive, and ideal water heater for homes with different settings. They are extremely convenient to install and require no complicated wiring, so they can stand out against other heaters. These trendy water heaters have a sleek and compact design with incredible features. Hot water is consistently available to you at all times. Furthermore, Takagi tankless water heaters have a wide range of applications, both domestic and commercial.

Recommendation

Choosing a tankless that is according to your requirements and budget is not an easy job. I would suggest you if you have a medium-sized home then Takagi KJr 2 should be your ultimate decision. 

If you are in search of an efficient tankless model, then buying the Takagi T-H3 is the perfect decision as it is a condensing unit and performs efficiently.  


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