WattCost

Data through June 2026

Running cost · Water Heaters (Electric) · ENERGY STAR certified

Ariston ARIHPWH-65

For a standard household draw pattern, the Ariston ARIHPWH-65 uses a certified 1,289 kWh per year: roughly $236 annually at the national average rate. Efficiency-wise it's unremarkable in a good way: within 7% of the median certified electric water heater (rank 363 of 510). Where you live moves the bill from $169 a year in Nevada to $680 in Hawaii.

Dimensions 50" H × 20.2" W

Estimated annual running cost · U.S. average rate 18.3¢/kWh

$236/yr

$125 · cheapest certified water heaters (electric)$319 · priciest
Per month
$19.70
Per day
65¢
Certified use
1,289 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
62 gal
First-hour rating
78 gal
UEF
3.85
681 kWh1,741 kWh
Where the Ariston ARIHPWH-65 (▮) sits among all 510 certified water heaters (electric), by annual kWh

What it costs in every state

Ariston ARIHPWH-65: 1,289 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$211
Alaska28.2¢$364
Arizona15.2¢$196
Arkansas14.1¢$182
California34.7¢$448
Colorado17.1¢$221
Connecticut24.3¢$313
Delaware19.3¢$249
District of Columbia24.4¢$314
Florida15.1¢$195
Georgia16.4¢$211
Hawaiipriciest52.7¢$680
Idaho14.4¢$185
Illinois19.9¢$256
Indiana17.5¢$226
Iowa15.9¢$205
Kansas15.7¢$203
Kentucky14.3¢$184
Louisiana13.5¢$174
Maine29.6¢$381
Maryland21.8¢$282
Massachusetts29.6¢$382
Michigan23.0¢$296
Minnesota17.5¢$226
Mississippi14.9¢$192
Missouri16.2¢$209
Montana15.1¢$195
Nebraska13.3¢$171
Nevadacheapest13.1¢$169
New Hampshire27.0¢$348
New Jersey24.9¢$322
New Mexico15.1¢$194
New York29.5¢$380
North Carolina14.7¢$190
North Dakota14.1¢$182
Ohio19.2¢$247
Oklahoma14.3¢$185
Oregon16.3¢$210
Pennsylvania21.7¢$280
Rhode Island29.2¢$377
South Carolina15.6¢$200
South Dakota15.4¢$198
Tennessee14.1¢$181
Texas15.9¢$205
Utah13.4¢$172
Vermont24.4¢$315
Virginia17.2¢$222
Washington14.9¢$192
West Virginia15.4¢$199
Wisconsin19.6¢$252
Wyoming15.2¢$196

Certified models closest in efficiency

electric water heaters within reach of 1,289 kWh/yr
ModelkWh/yr$/yr (US avg)
AMERICAN STANDARD WATER HEATERS ASHPWH-651,289$236
A. O. Smith CAHP-66 21,292$237
A. O. Smith HPA10-66H45DV 21,292$237
A. O. Smith HPTA-66 21,292$237
American HPA10266H045DV 21,292$237
Lochinvar CHPA-66 21,292$237

Run your own numbers

Your rate, your numbers

Per day
65¢
Per month
$19.70
Per year
$236

1,289 kWh/yr × 18.3¢/kWh = $236/yr

Prefilled with this model's certified 1,289 kWh/yr — adjust if your usage differs from the DOE test basis. The certified annual kWh comes from the DOE Uniform Energy Factor test, which simulates a typical household's daily hot-water draw pattern. Only electric models (including heat-pump units) are listed — gas models burn gas, not kWh.

Questions, answered with the data

How much electricity does the Ariston ARIHPWH-65 use?
ENERGY STAR certifies the Ariston ARIHPWH-65 at 1,289 kWh per year. The certified annual kWh comes from the DOE Uniform Energy Factor test, which simulates a typical household's daily hot-water draw pattern. Only electric models (including heat-pump units) are listed — gas models burn gas, not kWh.
How much does the Ariston ARIHPWH-65 cost to run per month?
About $19.70 a month at the U.S. average residential rate (18.3¢/kWh) — 65¢ a day, or $236 a year. Your state's rate moves this up or down; see the table above.
Is the Ariston ARIHPWH-65 energy efficient?
It uses 7% more electricity than the median certified electric water heater.
What does the Ariston ARIHPWH-65 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $169 a year in Nevada (13.1¢/kWh) and $680 in Hawaii (52.7¢/kWh).

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