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**This product qualifies for the Federal Tax Credit. Please see the bottom of this description for tax credit details.

Released in 2008, the T-K3-SP is one of Takagi's residential tankless water heaters. The T-K3-SP model was designed for light residential applications. This model can be used for special projects. It is a fully modulating, gas fired, tankless, on demand water heater with power-vented flue. It can be installed either indoors or outdoors, and used in either residential or commercial applications. Supplies hot water to: domestic hot water systems (directly or indirectly using water storage tanks), recirculation systems, hydronic heating systems, radiant floor heating systems, and/or combined domestic & heating applications, etc.

At 13.8 inches wide and weighing only 40 pounds, its ultra-compact design allows it to be mounted on a wall or installed between two wall studs using Takagi's TK-RBO1 recess box, so it's even more inconspicuous.

The T-K3-SP features a built-in power venting system and requires Category III venting or vent caps. It can provide an unlimited supply of hot water continuously because there is no storage tank to heat and reheat. The T-K3-SP starts heating water at 0.5 gallons per minute (GPM), and can keep that endless supply of hot water running up to a maximum flow rate of 7.0 GPM.

The T-K3-SP also offers four separate temperature settings, ranging from 113 to 167 degrees Fahrenheit, so it does not require the use of a separate remote control.

Unlike other Takagi models, the T-K3-SP is not linkable or direct vent convertible. **Federal Tax Credit Information:

The purchase and installation of this energy-efficient product in your home qualifies you for a Federal Tax Credit.

The 2010 tax credit is worth 30% of the item's total cost (including installation), up to a maximum of $1,500. The credit is applicable on products placed in service between January 1, 2009 and December 31, 2010 and installed in your primary residence.

The 2011 tax credit extension is worth 10% of the item's total cost up to of $500 (installation cost is not included). The credit is applicable on products placed in service between January 1, 2011 and December 31, 2011 and installed in your primary residence. There is a $500 cap for the 2011 tax credit extension, so if you have claimed $500 or more since January 1, 2005, you are not eligible for the credit. Additional caps have been placed on specific product categories, including a $300 cap for water heaters and a $150 cap for boilers.

Since this non-solar gas water heater has either an Energy Factor greater than or equal to 0.82 or a thermal efficiency of at least 90%, it qualifies for the Federal Tax Credit.

To apply for the tax credit, you must file and submit the relevant tax forms. For products "placed in service" in 2011, you would take the tax credit on your 2011 income taxes. Remember to save your receipts and the Manufacturer's Certification Statement for your records.

Please see Federal Tax Credits for Consumer Energy Efficiency for additional information.
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1-2 Showers

Product Type:

Tankless Heater

Fuel Type:

Natural Gas

BTU Range:

11000 to 199000 BTU





Min Pressure (W.C.):

5" W.C.

Max Pressure (W.C.):

10.5" W.C.

Water Connection:


Gas Connection:


Vent Size:


Flow Rate:

0.5-7 GPM

Max Pressure (PSI):


Height (Inches):




Depth (Inches):


Weight (lbs):

40 lbs

Temperature Range (F):

104°F to 185°F

1st Hour Delivery (Gallons):


Water Pressure:

15 psi to 150 psi

Inlet Water Temp:


Outlet Water Temp:


Energy Factor:


Venting Requirement:

Category III Stainless Steel


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