Takagi Water Heaters | FurnaceCompare®

Takagi Water heaters

Everything you need on Takagi Water heaters, including model details, industry rankings and customer reviews, all in one place.

Takagi Water heater Overview

Takagi manufactures a wide range of residential and commercial tankless water heaters and accessories. They are headquartered in Irvine, California, with regional offices in Tennessee and New Jersey, and a global office in Canada. A.O. Smith acquired all of Takagi USA’s assets in 2010. A.O. Smith Corporation had sales of approximately $3 billion in 2017.

What are the 10 Best Water heaters?

Consumer Reviews of Takagi


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #1 of 1 Takagi Water heater
  • 28.57% of customers recommended

Corporate History

The Japanese company was founded in 1952 and entered the American market with the opening of its Tustin, California operations in 1995. Some of the “firsts” claimed by the company include: bringing tankless-only products to the North American market; offering a tankless product with an efficiency rating of up to 95%; and offering direct-vent convertible tankless model of water heater. The company entered into a joint venture with A.O. Smith in 2010 in which A.O. Smith acquired all of Takagi USA’s assets and assumed responsibility for the Takagi brand.

Product Lines

Takagi tankless units provide between 200 and 500 gallons of hot water per hour, depending on the model, and 34 models are Energy Star rated. Ten units are capable of a maximum flow rate of 10 gallons per minute, and four models feature a maximum flow rate of 14.5 gallons per minute. The Tagagi line includes both indoor and outdoor units which can run on natural gas or propane.


Takagi provides a 15-year heat exchanger 5-year parts warranty on residential models. On commercial models they provide a 10-year heat exchanger and 5-year parts warranty.

Find a Certified Heating & Cooling Professional In Your Area

Contact a top-rated local expert to help with all of your home's HVAC needs.

HVAC Brands

Learn more about your home's heating and cooling system with our guides, how-to's, FAQ's, tips and more.

Ready to get a quote from an HVAC contractor?

Let us know what type of service you need and we can connect you with a certified local HVAC contractor.

Please enter a valid name

Please enter a valid phone number

Please enter a valid zip code

There are no dealers in this zip code.

Please enter a valid email address

Please select repair or replace

Please select heating, cooling or both