WattCost

Data through June 2026

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

Lochinvar CHPA-66 2

For a standard household draw pattern, the Lochinvar CHPA-66 2 uses a certified 1,292 kWh per year: roughly $237 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 368 of 510). The same unit costs $169 a year in Nevada but $681 in Hawaii — electricity rates, not the appliance, make the difference.

Dimensions 61" H × 23" W

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

$237/yr

$125 · cheapest certified water heaters (electric)$319 · priciest
Per month
$19.75
Per day
65¢
Certified use
1,292 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
68 gal
First-hour rating
83 gal
UEF
3.84
681 kWh1,741 kWh
Where the Lochinvar CHPA-66 2 (▮) sits among all 510 certified water heaters (electric), by annual kWh

What it costs in every state

Lochinvar CHPA-66 2: 1,292 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$212
Alaska28.2¢$364
Arizona15.2¢$196
Arkansas14.1¢$182
California34.7¢$449
Colorado17.1¢$221
Connecticut24.3¢$314
Delaware19.3¢$249
District of Columbia24.4¢$315
Florida15.1¢$195
Georgia16.4¢$211
Hawaiipriciest52.7¢$681
Idaho14.4¢$186
Illinois19.9¢$257
Indiana17.5¢$226
Iowa15.9¢$206
Kansas15.7¢$203
Kentucky14.3¢$184
Louisiana13.5¢$174
Maine29.6¢$382
Maryland21.8¢$282
Massachusetts29.6¢$383
Michigan23.0¢$297
Minnesota17.5¢$226
Mississippi14.9¢$192
Missouri16.2¢$210
Montana15.1¢$196
Nebraska13.3¢$171
Nevadacheapest13.1¢$169
New Hampshire27.0¢$349
New Jersey24.9¢$322
New Mexico15.1¢$195
New York29.5¢$381
North Carolina14.7¢$190
North Dakota14.1¢$182
Ohio19.2¢$248
Oklahoma14.3¢$185
Oregon16.3¢$211
Pennsylvania21.7¢$281
Rhode Island29.2¢$378
South Carolina15.6¢$201
South Dakota15.4¢$198
Tennessee14.1¢$182
Texas15.9¢$206
Utah13.4¢$173
Vermont24.4¢$316
Virginia17.2¢$222
Washington14.9¢$193
West Virginia15.4¢$200
Wisconsin19.6¢$253
Wyoming15.2¢$197

Certified models closest in efficiency

electric water heaters within reach of 1,292 kWh/yr
ModelkWh/yr$/yr (US avg)
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 HPPA065KD 21,292$237
RELIANCE WATER HEATERS 10-66-DHPTA 21,292$237

Run your own numbers

Your rate, your numbers

Per day
65¢
Per month
$19.75
Per year
$237

1,292 kWh/yr × 18.3¢/kWh = $237/yr

Prefilled with this model's certified 1,292 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 Lochinvar CHPA-66 2 use?
ENERGY STAR certifies the Lochinvar CHPA-66 2 at 1,292 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 Lochinvar CHPA-66 2 cost to run per month?
About $19.75 a month at the U.S. average residential rate (18.3¢/kWh) — 65¢ a day, or $237 a year. Your state's rate moves this up or down; see the table above.
Is the Lochinvar CHPA-66 2 energy efficient?
It uses 7% more electricity than the median certified electric water heater.
What does the Lochinvar CHPA-66 2 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 $681 in Hawaii (52.7¢/kWh).

Keep digging