Sale Products Miseno Range Hoods Bath Fan Free Shipping Heaters Vent Pipe Tankless Hot Water Heater Fans Air Conditiioners Ranges Bath Fans Range Hoods

Takagi TKJR2INNG 6.6 GPM Natural Gas Indoor Tankless Water Heater

Item #: bci1716377
View the entire KJr2 Series Collection

Offer Ends
Originally $1,024.00, You Save 43%
Shipping: Free Shipping! See Details
30 In Stock
Choose a finish to see stock availability

Leaves the Warehouse in 1 to 2 business days
Earn 580 points with the purchase of this product Learn More

Product Details for the Takagi TKJR2INNG

This product has additional required/recommended options. To configure, add to your cart.

  • Exhaust Backflow Recommended
  • Wall Thimble Recommended
  • Recess Box Recommended
  • Remote control Recommended

6.6 GPM Natural Gas Outdoor Tankless Water Heater

**If adding the S8008001005 to your order and DO NOT have an exsisting 3/4" gas line, you will need to upgrade to one.

The T-KJr2-IN-NG model is the smallest unit in the Takagi line-up. The T-KJr2-IN-NG is perfect for light residential (i.e. small apartment units) and radiant heating applications. This small but powerful unit, with gas inputs up to 140,000 BTU per hour, can meet all the hot water needs of a small American Home or apartment with one or two bathrooms. This unit will flow at a maximum of 6.6 gallons per minute. The Takagi T-KJr2-IN-NG can virtually do anything a 40 gallon tank-type water heater can do and more! The wall mounted T-KJr2-OS can support hydronic baseboard or radiant floor heating applications, as well as provide domestic hot water to plumbing fixtures and appliances.

Since there is no tank to fill, there is no end to your supply of hot water. Depending on the model, Takagi Tankless water heaters deliver between 200 gallons and 500 gallons of hot water every hour on demand. Tankless systems guarantee that an endless supply of water is available to residences, commercial spaces or anywhere a constant source of hot water is needed.


  • Capacity 1-2 Showers (Depending on climate)
  • Gas Fired Tankless Water Heater
  • Safety Features: Air-Fuel Ratio Sensor (AFR), Exhaust and Water Temperature Safety Control, and Overheat Cutoff Fuse
  • Internal Freeze Protection System
  • Manual reset switch
  • Power Cord Included


  • Min 19,500 BTU/h
  • Max 140,000 BTU/h
  • Energy Factor - 0.82
  • Dimensions - H 20.3" x W 13.8" x D 8.5"
  • Weight - 33 lbs
  • Clearance- Top: 12", Bottom: 12", Front: 24", Back: 1", Sides: 2 "


  • Horizontal or Vertical Installation
  • Power Vent
  • Electric Ignition
  • Flu 4" O.D. - Category III Stainless Steel Only
  • Intake 3" O.D. (ABS, PVC, Galvanized Steel, Corrugated Stainless Steel, Category III/IV Stainless Steel
  • 50" Max Length
  • 5 Elbow MAX (90 degree Elbow = 5' length)


  • TK-RE02 -Build-in Temperature Remote Control
  • TK-PCJr2 - Pipe Cover
  • 9007674005 - Heater Recess Box
  • 9007996005 - Backflow Preventer & F-F Adapter
  • 9007667005 - Direct Vent Conversion Kit
  • 9007605005 - Isolation Valve Kit

Why choose Takagi? Takagi produce some of the most highly efficient tankless water heaters in the industry. With a commitment to innovation and quality, they are constantly creating new technology to keep up with their customers’ ever-changing hot water needs. Takagi sets the bar with the most stringent of durability testing standards for all of our models. For 15 years, Takagi has provided the most eco-friendly, energy-efficient water heating solutions in North America.

Our SKU: Takagi T-KJr2-IN-NG

This product is listed under the following manufacturer number(s):

*Denotes a finish or option that has been discontinued

Takagi T-KJr2-IN-NG Reviews

Rated 5 out of 5 by from Great Water heater Bought this for a bathroom and washer. Very happy with the purchase - install was a breeze.
Date published: 2014-06-02
Rated 5 out of 5 by from Takagi jr This was the third Takagi jr tankless water heater i have purchased, use them on my house, my sons house, and our rental and they are awesome
Date published: 2015-03-05
Rated 5 out of 5 by from very efficient and easy to install. We bought this a month ago and it has been a good product so far.
Date published: 2015-02-08
Rated 5 out of 5 by from Excellent value As a renovation contractor, we are frequently asked to install tankless water heaters. The Takagi units are our 'go to' heaters for all partial and whole-house applications.
Date published: 2014-11-24
Rated 5 out of 5 by from Takagi T-KJr2-IN-NG N/A 6.6 GPM Natural Gas Indoor Tankless Water Heater This product exceeded alll expectataions! There is NEVER a shortage of hot water. And 2 showers can run at the same time, no problem! I absolutely LOVE this water heater!
Date published: 2014-09-12
  • 2015-03-19T18:43CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.1
  • cp_1, bvpage1
  • co_hasreviews, tv_1, tr_5
  • loc_en_US, sid_cp-719046, PRD, sort_mostHelpful
  • clientName_MoreHome
2 Questions from the Community
Loading nanoRep

Why do you need 120 volts for this product?

The Takagi T-KJr2-IN-NG needs the electrical wiring to allow the thermostat to activate when in operation.

Is this unit vented out the side of the house or can I use the existing roof vent?

The Takagi T-KJr2-IN-NG can be vented in either application.

Buy the Takagi TKJR2INNG at Research Takagi TKJR2INNG online. Find Takagi TKJR2INNG features and specifications. Get the best deal by comparing the Takagi TKJR2INNG today.


Recently Viewed Items

DON'T MISS A DEAL! Sign Up For Email SAVINGS Privacy Policy
Live Product Expert