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On Demand Water Heater Reviews

 Noritz
 Model:
NR98-DVC
 Type: 9.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Direct
 Flow: 4.2 GPM (80* Rise)
 Energy Star: Yes
 Nominal Price: $1200
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


8


Heater
Only
Payback
Years


18


Heater
Plus Install
 Noritz
 Model:
NR98-OD
 Type: 9.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Atmospheric
 Flow: 4.2 GPM (80* Rise)
 Energy Star: Yes
 Nominal Price: $1200
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


8


Heater
Only
Payback
Years


18


Heater
Plus Install
 Navien America
 Model:
CC-210A-NG
 Type: 9.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
175000 BTU/H
 Vent: Direct
 Flow: 4.6 GPM (75* Rise)
 Energy Star: Yes
 Nominal Price: $2200
Energy
Factor


0.95


Efficiency
Ratio
Operating
Cost


$205


Annual
US Avg
Limited
Warranty


10


Years Heat
Exchanger
Payback
Years


13


Heater
Only
Payback
Years


20+


Heater
Plus Install
 Navien America
 Model:
CC-210-NG
 Type: 9.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
175000 BTU/H
 Vent: Direct
 Flow: 4.6 GPM (75* Rise)
 Energy Star: Yes
 Nominal Price: $2000
Energy
Factor


0.95


Efficiency
Ratio
Operating
Cost


$205


Annual
US Avg
Limited
Warranty


10


Years Heat
Exchanger
Payback
Years


12


Heater
Only
Payback
Years


19


Heater
Plus Install
 Rinnai
 Model:
R98LSeN
 Type: 9.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
237000 BTU/H
 Vent: Atmospheric
 Flow: 5.1 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $1500
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


11


Heater
Only
Payback
Years


20+


Heater
Plus Install
 Rinnai
 Model:
R98LSiN
 Type: 9.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
237000 BTU/H
 Vent: Direct
 Flow: 5.1 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $1500
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


11


Heater
Only
Payback
Years


20+


Heater
Plus Install
 Noritz
 Model:
NC199-OD
 Type: 9.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Atmospheric
 Flow: 4.8 GPM (70* Rise)
 Energy Star: No
 Nominal Price: $1800
Energy
Factor


0.86


Efficiency
Ratio
Operating
Cost


$226


Annual
US Avg
Limited
Warranty


5


Years Heat
Exchanger
Payback
Years


12


Heater
Only
Payback
Years


20+


Heater
Plus Install
 Noritz
 Model:
NC199-DVC
 Type: 9.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Direct
 Flow: 4.8 GPM (70* Rise)
 Energy Star: No
 Nominal Price: $1800
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


5


Years Heat
Exchanger
Payback
Years


14


Heater
Only
Payback
Years


20+


Heater
Plus Install
 Noritz
 Model:
NC199-OD
 Type: 9.8 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Atmospheric
 Flow: 4.8 GPM (70* Rise)
 Energy Star: No
 Nominal Price: $1800
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


5


Years Heat
Exchanger
Payback
Years


14


Heater
Only
Payback
Years


20+


Heater
Plus Install
 Rheem
 Model:
RTG-95DVN
 Type: 9.5 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Direct
 Flow: 4.3 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $950
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


5


Heater
Only
Payback
Years


15


Heater
Plus Install
 Rheem
 Model:
RTG-95XN
 Type: 9.5 GPM Max Tankless
 Fuel: Natural Gas
 Energy:
199000 BTU/H
 Vent: Atmospheric
 Flow: 4.3 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $950
Energy
Factor


0.82


Efficiency
Ratio
Operating
Cost


$238


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


5


Heater
Only
Payback
Years


15


Heater
Plus Install
 Rheem
 Model:
RTGH-95DVN
 Type: 9.5 GPM Max Tankless
 Fuel: Natural Gas Condensing
 Energy:
199000 BTU/H
 Vent: Direct
 Flow: 4.9 GPM (77* Rise)
 Energy Star: Yes
 Nominal Price: $1200
Energy
Factor


0.94


Efficiency
Ratio
Operating
Cost


$207


Annual
US Avg
Limited
Warranty


12


Years Heat
Exchanger
Payback
Years


6


Heater
Only
Payback
Years


14


Heater
Plus Install

On Demand Water Heater Reviews


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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