Flash TK3-OS
The TK3-OS model is the best outdoor model on the market! The TK3-OS has a built-in power venting system and was designed specifically for outdoor installations. The TK3-OS does not require any additional Category III venting or vent caps, making installation one step easier for installers.
Released in 2007, the TK3-OS is Takagi’s tankless water heater built only for outdoor installations.
The TK3-OS is one of Takagi’s smaller tankless water heaters. 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-RBO2 recess box, so it's even more inconspicuous. Since it can only be installed outside, the TK3-OS is ideal for warmer climates.
The TK3-OS features a built-in power venting system, but unlike any of its predecessors, the new tankless water heater does not require any additional Category III venting or vent caps, making installation one step easier for its installers.
It can provide an unlimited supply of hot water continuously because there is no storage tank to heat and reheat. The TK3-0S starts heating water at 0.5 gallons per minute (GPM), and can keep that endless supply of hot water running from as low as 0.4 GPM up to a maximum flow rate of 7.0 GPM.
Takagi's newest tankless water heater also features a thermal rating of 83% for both liquid propane and natural gas, so it is extremely efficient and environmentally friendly. Since tankless water heaters only burn gas when hot water is needed, installing this unit can help homeowners save up to 45% on their monthly gas bills.
The TK3-OS also offers four separate temperature settings, ranging from 113 to 167 degrees, so it does not require the use of a separate remote control.
| Natural Gas Input |
Min. 11,000 Btu |
Max. 190,000 Btu |
| LPG Input |
Min. 11,000 Btu |
Max. 190,000 Btu |
| Gas Connection |
3/4" NPT |
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| Water Connection |
3/4" NPT |
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| Natural Gas Pressure Inlet |
Min. 5.0" W.C. |
Max. 10.5" W.C. |
| Weight |
40 lbs |
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| Dimensions |
20.5" x 13.8" x 8.5" |
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| Ignition |
Electronic Ignition |
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| Electrical Supply |
AC 120V (60 Hz) |
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| Water Pressure |
Min. 15 psi |
Max. 150 psi |
| Natural Manifold Pressure |
2.8" W.C. |
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| LP Manifold Pressure |
3.2" W.C. |
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Add to Cart
$149.00
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TK-RE02
Temperature Remote Controller |
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The TK-RE02 Temperature Remote Controller allows the output temperature to be adjusted beyond the factory settings, and works as a diagnostic tool for error codes.
Temp. settings
(95, 100, 102, 104, 106, 108, 110, 111, 113, 115, 117, 122, 131, 140, 158, 167, 176F) |
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