Faucet Depot Logo View Cart | My Account | Order Status | Customer Care | Buyers Guide | Toll Free: 888.328.2389
Home > Household Plumbing > Water Heaters > Tankless Water Heaters > Takagi Jr. T-KJr-NG Flash Natural Gas Tankless Water Heater

Takagi Jr. T-KJr-NG Flash Natural Gas Tankless Water Heater
Click to Enlarge
Item No:T-KJR-NG
Retail Price:$864.00
Our Price:$648.00
For additional savings this product has a current coupon/promo code: HOTWATER that can be redeemed at checkout at the order confirmation page.
In Stock
This item is in stock and will ship the same day (Monday – Friday) when the order is placed before 2:00pm PT (5:00pm ET).




View All Items by Takagi
Product Description

T-KJr-NG Takagi Jr. Flash Natual Gas Tankless Water Heater

Released in 2003, the T-K Jr. is the smallest water heater in the Takagi tankless line. But 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, as well as smaller commercial applications. Designed to virtually do anything a 40-gallon tank-type water heater can do and more, the compact, wall mounted T-K Jr. can support hydronic baseboard or radiant floor heating applications, as well as provide domestic hot water to plumbing fixtures and appliances. The T-K Jr. has an efficiency rating of 83%, using natural gas, and 84% with propane. At an average ∆T (rise in temperature) of 60°F in warmer areas - where the winter ground water is 60°F and with the output set at 120°F - the unit will provide 3.8 GPM, or 228 GPH. In colder areas where the input temperature may be 40°F or less you can expect a flow rate of about 2.7 GPM or 162 GPH.

Cost-efficient and environmentally friendly, the T-K Jr. can be converted into a direct-vent unit by using the optional TV09 conversion kit for installation in a garage, a utility closet or any confined space in which makeup air may be limited. Please refer to "Accessories" for more information on venting options.

Using the average of 60°F input water cited above, the T-K Jr. can provide enough hot water for one shower and a lavatory basin at a time; or one low-flow shower (2.5 GPM or less) and an appliance, such as a dishwasher or washing machine, at the same time. For much colder input temperatures, such as 40°F or lower, this unit can provide endless hot water for consecutive uses; that is, running only one major fixture at a time. Please refer to the flow charts for specific rates.

The four preset temperatures on the unit are: 113°F, 122°F, 140°F, and 182°F. To achieve any temperatures other than those presets, your client will require the TK-RE20 temperature controller.

  • Natural Manifold Pressure: 3.2" W.C.
  • Water Pressure: Min. 15 psi / Max. 150 psi
  • Electrical Supply: AC 120V (60 Hz)
  • Ignition: Electronic Ignition
  • Dimensions: 20" x 14" x 6"
  • Weight: 32 lbs
  • Natural Gas Pressure Inlet: Min. 5.5" W.C. , Max. 10.5" W.C.
  • Water Connection: 3/4" NPT
  • Gas Connection: 3/4" NPT
  • Natural Gas Input: Min. 19,500 Btu, Max. 140,000 Btu
  • Faucet Depot Rating: Great Choice
    Green Product Handle Information

    Warranty Information

    Specification Information
    Customer Reviews
    Charles S (OK) - Rating: 5
    This is the second unit that I have installed and I have no complaints. The newer one was even better then the previous model. Buy one now before everyone finds out!

    Tim D (CA) - Rating: 5
    Thanks for the timely delivery and great product selection! Tim

    Ruben G (CA) - Rating: 5
    Greatest investment/purchase I ever made. It was so simple to install. Just like it says, "endless hot water". I highily recommend this product to anyone, money well spent and instant delivery the next day. Also, the unit is very quiet when it is working, which really surprised me. Thank you faucetdepot.

    Shane S (AK) - Rating: 5
    Packed very well, Thanks. Arrived quickly. Works great.

    Gary S (MT) - Rating: 5
    Couldn''t be better. All the hot water I need.

    View All Customer Reviews (10 total)


    TK-RE02
    Takagi TK-RE02 Tankless Water Heater Remote Control
    Item No: TK-RE02
    Finish: None
    Rating: 

    Read Customer Reviews
    Retail Price: $115.00
    Our Price: $83.34
    TK-TV04
    Takagi TK-TV04 Outdoor Installation Vent Cap
    Item No: TK-TV04
    Finish: Stainless Steel
    Rating: 

    Read Customer Reviews
    Retail Price: $60.00
    Our Price: $36.45
    TAKTK-BF01
    Takagi TK-BF01 Exhaust Backflow Prevention Kit
    Item No: TAKTK-BF01
    Finish: Stainless Steel
    Rating: 

    Read Customer Reviews
    Retail Price: $48.31
    Our Price: $29.38
    TK-TV09
    Takagi TK-TV09 Direct Vent Conversion Kit
    Item No: TK-TV09
    Finish: Stainless Steel
    Rating: 
    Retail Price: $77.70
    Our Price: $47.25
    TK-KPWL4-1
    Takagi TK-KPWL4-1 Wall Thimble with Louver
    Item No: TK-KPWL4-1
    Finish: Stainless Steel
    Rating: 
    Retail Price: $95.00
    Our Price: $91.80
    TK-IV01
    Takagi TK-IV01 Isolation Valve Kit for Tankless Water Heater
    Item No: TK-IV01
    Finish: None
    Rating: 
    Retail Price: $60.00
    Our Price: $60.00
    TK-IV01-AB
    Takagi TK-IV01-AB Isolation Valve Kit for Tankless Water Heater - Lead Free
    Item No: TK-IV01-AB
    Finish: None
    Rating: 
    Retail Price: $72.00
    Our Price: $72.00
    TK-IV01R
    Takagi TK-IV01R Isolation Valve Kit for Tankless Water Heater
    Item No: TK-IV01R
    Finish: None
    Rating: 
    Retail Price: $60.00
    Our Price: $60.00
    TK-IV01R-AB
    Takagi TK-IV01R-AB Isolation Valve Kit for Tankless Water Heater - Lead Free
    Item No: TK-IV01R-AB
    Finish: None
    Rating: 
    Retail Price: $72.00
    Our Price: $72.00
    TK-KPWH4-1
    Takagi TK-KPWH4-1 Hood Wall Vent Terminator
    Item No: TK-KPWH4-1
    Finish: Stainless Steel
    Rating: 
    Retail Price: $107.00
    Our Price: $107.00
    TK-KPCT43-1
    Takagi TK-KPCT43-1 3x4 DV Termination
    Item No: TK-KPCT43-1
    Finish: Stainless Steel
    Rating: 
    Retail Price: $108.00
    Our Price: $108.00
    TK-TV13
    Takagi TK-TV13 Wall Vent Terminator
    Item No: TK-TV13
    Finish: Stainless Steel
    Rating: 
    Retail Price: $159.84
    Our Price: $97.20


    See more of what Takagi has to offer...
    * Takagi Tankless Water Heaters and Tankless Accessory Products
    * How a Tankless Water Heater Works