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Takagi T-K4-IN-NG Review


Takagi T-K4-IN-NG Review

Takagi T-K4-IN-NG Pros and Cons

The Pros

The Takagi T-K4-IN-NG is an Indoor Natural Gas tankless water heater that can produce up to 8.0 Gallons per Minute. This tankless water heater by Takagi has the option for a direct vent conversion which makes it a really great value. The Takagi T-K4-IN-NG is a great choice for mid-sized homes.

The Cons

The Takagi T-K4-IN-NG may be more than enough water output being 8.0 Gallons per Minute than necessary for smaller homes. If you own a smaller home or have low hot water usage on a regular basis, there are more inexpensive alternatives then the Takagi T-K4-IN-NG.


The Takagi T-K4-IN-NG is a very innovative and affordable tankless water heater with many benefits. Between it's water output and technology there aren't many other tankless water heaters in it's price range that are comparable. I would recommend the Takagi T-K4-IN-NG for any mid sized home.

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Takagi T-K4-IN-NG Review

About the Manufacturer

Takagi has been a manufacturer of tankless water heaters since 1952 and were the first company to manufacture tankless only products in North America. Takagi has made it their initiative to make eco-friendly tankless products that help to relieve global warming. The Takagi T-K4-IN-NG is another great example of Takagi's innovation.


The Takagi T-K4-IN-NG has many great benefits and features including the optional direct vent capability. The compact design makes for easy installation due to it being able to mounted easily on a wall. This energy efficient tankless water heater can help you save up to 45% on your energy bills.

Here is a list of some additional features:

- Up to 8.0 Gallons per Minute

- Residential Warranty - 12 year heat exchanger, 5 year parts and 1 year labor

- Includes exhaust and water temperature control

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Where to buy the Takagi T-K4-IN-NG

There are numerous retailers and online stores where you can purchase the Takagi T-K4-IN-NG. Based on the research I have done, you can find the Takagi T-K4-IN-NG the cheapest through Amazon. With Amazon you will have the ability to find new or used tankless water heater units.

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