Takagi Tankless Water Heater Review

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Takagi Tankless Water Heater Review

 Takagi
 Model:
T-KJr2-IN-N
 Type: 6.6 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
140000 BTU/H
 Vent: Atmospheric
 Flow: 3 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $700
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


3


Heater
Only
Payback
Years


13


Heater
Plus Install
 Takagi
 Model:
T-KJr2-OS-N
 Type: 6.6 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
140000 BTU/H
 Vent: Atmospheric
 Flow: 3 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $700
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


3


Heater
Only
Payback
Years


13


Heater
Plus Install
 Takagi
 Model:
T-K4-IN-N
 Type: 8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
190000 BTU/H
 Vent: Power
 Flow: 4 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $800
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


4


Heater
Only
Payback
Years


14


Heater
Plus Install
 Takagi
 Model:
T-K4-OS-N
 Type: 8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
190000 BTU/H
 Vent: Power
 Flow: 4 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $800
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


4


Heater
Only
Payback
Years


14


Heater
Plus Install
 Takagi
 Model:
T-D2-IN-N
 Type: 10 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Power
 Flow: 4.1 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $1000
Energy
Factor


0.83


Efficiency
Ratio
Operating
Cost


$235


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


5


Heater
Only
Payback
Years


15


Heater
Plus Install
 Takagi
 Model:
T-K3-OS-N
 Type: 7 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
190000 BTU/H
 Vent: Power
 Flow: 3.5 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $800
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


10


Years Heat
Exchanger
Payback
Years


4


Heater
Only
Payback
Years


14


Heater
Plus Install
 Takagi
 Model:
T-K3-SP-N
 Type: 7 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
190000 BTU/H
 Vent: Power
 Flow: 3.5 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $800
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


10


Years Heat
Exchanger
Payback
Years


4


Heater
Only
Payback
Years


14


Heater
Plus Install
 Takagi
 Model:
T-KJr-N
 Type: 5.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
140000 BTU/H
 Vent: Power
 Flow: 2.9 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $800
Energy
Factor


0.83


Efficiency
Ratio
Operating
Cost


$235


Annual
US Avg
Limited
Warranty


10


Years Heat
Exchanger
Payback
Years


3


Heater
Only
Payback
Years


13


Heater
Plus Install
 Takagi
 Model:
T-K1S-N
 Type: 7.2 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
190000 BTU/H
 Vent: Power
 Flow: 3.9 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $800
Energy
Factor


0.85


Efficiency
Ratio
Operating
Cost


$229


Annual
US Avg
Limited
Warranty


10


Years Heat
Exchanger
Payback
Years


3


Heater
Only
Payback
Years


13


Heater
Plus Install
 Takagi
 Model:
T-K3-Pro-N
 Type: 7 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Power
 Flow: 3.5 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $1000
Energy
Factor


0.83


Efficiency
Ratio
Operating
Cost


$235


Annual
US Avg
Limited
Warranty


10


Years Heat
Exchanger
Payback
Years


5


Heater
Only
Payback
Years


15


Heater
Plus Install
 Takagi
 Model:
T-K3-N
 Type: 7 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Power
 Flow: 3.5 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $1000
Energy
Factor


0.84


Efficiency
Ratio
Operating
Cost


$232


Annual
US Avg
Limited
Warranty


10


Years Heat
Exchanger
Payback
Years


5


Heater
Only
Payback
Years


15


Heater
Plus Install
 Takagi
 Model:
T-D2-OS-N
 Type: 10 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Power
 Flow: 4.1 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $1000
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


6


Heater
Only
Payback
Years


16


Heater
Plus Install

Takagi Tankless Water Heater Review


About This Data: Operating costs are based on US EIA national averages of Electricity ($0.012/kWh), Natural Gas ($13/1000 ft3), and Propane ($2.80/gal). Prices fluctuate and your state may be higher or lower, so compare the relative costs. Payback years are based on comparisons with same-fuel, basic tank water heaters: Electric (EF 0.9, Price $350), Gas/Propane (EF 0.58, Price $450). To compare paybacks of changing fuel sources use the operating costs. Installation costs are assumed $300 (tanks) and $1,000 (tankless).


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