Best Water Heater

Best Water Heater
Ratings Guide
Best
Better
Good
Fair
Poor

Navien
NPE-180A-NG

Type: 8.4 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 3.8 GPM (77* Rise)
Nominal Price: $1000
Energy

0.97

Factor
Utility Cost

$209

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$119

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4100

Install+Utilities
Navien
NPE-180S-NG

Type: 8.4 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 3.8 GPM (77* Rise)
Nominal Price: $1000
Energy

0.99

Factor
Utility Cost

$204

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$119

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4000

Install+Utilities
Navien
NPE-210A-NG

Type: 10.1 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 4.6 GPM (77* Rise)
Nominal Price: $1100
Energy

0.97

Factor
Utility Cost

$209

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$109

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4200

Install+Utilities
Navien
NPE-210S-NG

Type: 10.1 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 4.6 GPM (77* Rise)
Nominal Price: $1100
Energy

0.99

Factor
Utility Cost

$204

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$109

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4100

Install+Utilities
Navien
NR-210A-NG

Type: 9.6 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 4.4 GPM (77* Rise)
Nominal Price: $1100
Energy

0.94

Factor
Utility Cost

$215

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$115

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4300

Install+Utilities
Navien
NR-210-NG

Type: 9.6 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 4.4 GPM (77* Rise)
Nominal Price: $1100
Energy

0.95

Factor
Utility Cost

$213

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$115

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4200

Install+Utilities
Richmond
RMTGH84XLN

Type: 8.4 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 3.8 GPM (77* Rise)
Nominal Price: $900
Energy

0.92

Factor
Utility Cost

$220

National Avg
Warranty

12

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$107

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4100

Install+Utilities
Takagi
T-H3-DV-N

Type: 10 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 4.9 GPM (77* Rise)
Nominal Price: $1200
Energy

0.95

Factor
Utility Cost

$213

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$120

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4300

Install+Utilities
A O Smith
ATI-110-N

Type: 6.6 GPM Tankless
Fuel: Natural Gas
Flow: 3 GPM (77* Rise)
Nominal Price: $700
Energy

0.82

Factor
Utility Cost

$247

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$106

Per GPM
Vent

Power

Type
10 Yr Cost

$4200

Install+Utilities
A O Smith
ATI-110U-N

Type: 6.6 GPM Tankless
Fuel: Natural Gas
Flow: 3 GPM (77* Rise)
Nominal Price: $700
Energy

0.82

Factor
Utility Cost

$247

National Avg
Warranty

12

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$106

Per GPM
Vent

Power

Type
10 Yr Cost

$4200

Install+Utilities
A O Smith
ATI-140H-N

Type: 6.6 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 2.9 GPM (77* Rise)
Nominal Price: $900
Energy

0.93

Factor
Utility Cost

$217

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$136

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4100

Install+Utilities
A O Smith
ATO-110-N

Type: 6.6 GPM Tankless
Fuel: Natural Gas
Flow: 3 GPM (77* Rise)
Nominal Price: $700
Energy

0.82

Factor
Utility Cost

$247

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$106

Per GPM
Vent

Power

Type
10 Yr Cost

$4200

Install+Utilities
A O Smith
ATO-110U-N

Type: 6.6 GPM Tankless
Fuel: Natural Gas
Flow: 3 GPM (77* Rise)
Nominal Price: $700
Energy

0.82

Factor
Utility Cost

$247

National Avg
Warranty

12

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$106

Per GPM
Vent

Power

Type
10 Yr Cost

$4200

Install+Utilities
A O Smith
ATO-140H-N

Type: 6.6 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 2.9 GPM (77* Rise)
Nominal Price: $900
Energy

0.93

Factor
Utility Cost

$217

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$136

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4100

Install+Utilities
American
GT-110-NE

Type: 6.6 GPM Tankless
Fuel: Natural Gas
Flow: 3 GPM (77* Rise)
Nominal Price: $800
Energy

0.82

Factor
Utility Cost

$247

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$121

Per GPM
Vent

Power

Type
10 Yr Cost

$4300

Install+Utilities
American
GT-110-NI

Type: 6.6 GPM Tankless
Fuel: Natural Gas
Flow: 3 GPM (77* Rise)
Nominal Price: $800
Energy

0.82

Factor
Utility Cost

$247

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$121

Per GPM
Vent

Power

Type
10 Yr Cost

$4300

Install+Utilities
American
GT-110-UE

Type: 6.6 GPM Tankless
Fuel: Natural Gas
Flow: 3 GPM (77* Rise)
Nominal Price: $800
Energy

0.82

Factor
Utility Cost

$247

National Avg
Warranty

12

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$121

Per GPM
Vent

Power

Type
10 Yr Cost

$4300

Install+Utilities
American
GT-110-UI

Type: 6.6 GPM Tankless
Fuel: Natural Gas
Flow: 3 GPM (77* Rise)
Nominal Price: $800
Energy

0.82

Factor
Utility Cost

$247

National Avg
Warranty

12

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$121

Per GPM
Vent

Power

Type
10 Yr Cost

$4300

Install+Utilities
American
GT-140-NEH

Type: 6.6 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 3 GPM (77* Rise)
Nominal Price: $900
Energy

0.93

Factor
Utility Cost

$217

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$136

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4100

Install+Utilities
American
GT-140-NIH

Type: 6.6 GPM Tankless
Fuel: Natural Gas Condensing
Flow: 3 GPM (77* Rise)
Nominal Price: $900
Energy

0.93

Factor
Utility Cost

$217

National Avg
Warranty

15

Yrs Tank/HE
Warranty

5

Yrs Parts
Unit Cost

$136

Per GPM
Vent

PowerD

Type
10 Yr Cost

$4100

Install+Utilities

About This Data: Operating and 10 year costs are based on US EIA national averages of Electricity ($0.0125/kWh), Natural Gas ($13.50/1000 ft3), and Propane ($3.00/gal). Your state may be higher or lower, so compare relative costs between water heaters. Listed water heater prices are nominal and may vary. Installation costs are assumed $300 (tanks) and $1,000 (tankless).

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Go to Water Heater Ratings from Best Water Heater


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