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Gas Tankless Water Heaters

Takagi T-KJr2
Takagi T-KJr2-OS
Takagi T-K4-IN
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Takagi T-H3M-IN


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Takagi Tankless Water Heater - T-K4-IN Options
Takagi Venting options and Takagi Accessories

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Remote control unit to control water temperature of the T-K-4 waterheater
Takagi TK-RE02
Takagi Temperature Remote Controller. The output temperature of the Takagi T-K4 can be controlled with a TK-RE02 remote controller, which comes with the T-K4. The Controller allows output temperatures beyond the factory settings and shows error codes. The TK-RE02 also monitors incoming and outgoing water temperatures. The temperature controller can adjust the output temperature from 100°F (38°C) to 167°F (75°C).

Click here to purchase the Takagi TK-RE02

Wall ventilation terminator for the T-K 4 Hot Water Heater
Takagi TK-KPWL4-2
The TK-KPWL4-1 / TK-KPWL4-2 is used when terminating the venting through a sidewall. Includes an outer sleeve wall thimble for penetrating through combustible surfaces. The louver termination acts as a bird screen, restricting small animals, pests, and foreign objects from entering into the vent system. This sidewall termination is available in three different sizes, to cover all ranges of wall thicknesses.

TK-KPWL4-1 for Wall from 4.2" to 6.0" with a 5.9" cut out hole.
TK-KPWL4-1 for Wall from 5.6" to 9.0" with a 5.9" cut out hole.


Click here to purchase the Takagi TK-KPWL4-2

Back flow preventer for the T-K4 Hot Water Heater
Takagi TK-BF01
The Takagi TK-BF01 Vent Damper prevents the backflow of air through the exhaust vent. This helps prevent harmful exhaust gases from entering the home, as well as helping to prevent the unit from freezing in areas where cold air can be blown or drawn into the exhaust system.

Click here for a TK-BF01 venting example

Click here to purchase the TK-BF01

Click this image for TK-TV10 installation instructions
Takagi TK-TV10
The TK-TV10 Direct Venting Kit can be used to convert the T-K4-IN from a conventional vent system to a direct vent (or sealed combustion) system. This is a CSA tested conversion kit. Install this conversion kit in accordance with Takagi's installation instructions and any applicable codes.

Click here to purchase the TK-TV10

ZFlex Venting Accessories for the Takagi T-K4-IN
Z-Flex Venting
Z Flex Stainless Steel Venting Accessories with silicone free connections. See our full line of pipe, exterior terminators, elbows and more. Perfect for vertical or horizontal installation. Stainless Steel Venting is required for all Takagi Water Heaters (Exhaust Only).

Click here to see sizes and prices for ZFlex Venting Supplies

Webstone Isolator EXP Union Valves for the Takagi T-K4-IN
Webstone Isolator EXP Valves
Easy two step installation of a Takagi T-K4 Tankless Water Heater with unsurpassed safety, features and benefits. This is a complete inlet/outlet valve system that provides everything you need for a secure installation including full port testing and flushing of the system with easy to install union connections.

Click here to see sizes and prices for Webstone Isolator EXP Union Valves

Falcon Stainless Steel Flex Pipes for the Takagi T-K4-IN
Falcon Stainless Steel Flex Pipes
Stronger and more flexible than copper with full flow/non-restrictive inner diameter. Flows 134% more water than braided and flows 17% more water than copper. Resists work-hardening and will not corrode, discolor or rust. Simpler installation versus hard pipe.

Click here to see sizes and prices for Falcon Stainless Steal 3/4 Inch Water Flex Pipes


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