WattCost

Data through June 2026

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

Lennox WHHP080T45MD240S

For a standard household draw pattern, the Lennox WHHP080T45MD240S uses a certified 1,210 kWh per year: roughly $222 annually at the national average rate. Efficiency-wise it's unremarkable in a good way: within 0% of the median certified electric water heater (rank 256 of 510). Where you live moves the bill from $159 a year in Nevada to $638 in Hawaii.

Dimensions 59.8" H × 20.2" W

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

$222/yr

$125 · cheapest certified water heaters (electric)$319 · priciest
Per month
$18.49
Per day
61¢
Certified use
1,210 kWh/yr
Type
Hybrid/Electric Heat Pump
Heat pump type
240 Volt Integrated HPWH
Storage volume
74 gal
First-hour rating
88 gal
UEF
4.1
681 kWh1,741 kWh
Where the Lennox WHHP080T45MD240S (▮) sits among all 510 certified water heaters (electric), by annual kWh

What it costs in every state

Lennox WHHP080T45MD240S: 1,210 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$198
Alaska28.2¢$341
Arizona15.2¢$184
Arkansas14.1¢$171
California34.7¢$420
Colorado17.1¢$207
Connecticut24.3¢$294
Delaware19.3¢$233
District of Columbia24.4¢$295
Florida15.1¢$183
Georgia16.4¢$198
Hawaiipriciest52.7¢$638
Idaho14.4¢$174
Illinois19.9¢$241
Indiana17.5¢$212
Iowa15.9¢$193
Kansas15.7¢$190
Kentucky14.3¢$173
Louisiana13.5¢$163
Maine29.6¢$358
Maryland21.8¢$264
Massachusetts29.6¢$358
Michigan23.0¢$278
Minnesota17.5¢$212
Mississippi14.9¢$180
Missouri16.2¢$196
Montana15.1¢$183
Nebraska13.3¢$160
Nevadacheapest13.1¢$159
New Hampshire27.0¢$327
New Jersey24.9¢$302
New Mexico15.1¢$182
New York29.5¢$357
North Carolina14.7¢$178
North Dakota14.1¢$171
Ohio19.2¢$232
Oklahoma14.3¢$173
Oregon16.3¢$197
Pennsylvania21.7¢$263
Rhode Island29.2¢$354
South Carolina15.6¢$188
South Dakota15.4¢$186
Tennessee14.1¢$170
Texas15.9¢$193
Utah13.4¢$162
Vermont24.4¢$296
Virginia17.2¢$208
Washington14.9¢$180
West Virginia15.4¢$187
Wisconsin19.6¢$237
Wyoming15.2¢$184

Certified models closest in efficiency

electric water heaters within reach of 1,210 kWh/yr
ModelkWh/yr$/yr (US avg)
Ariston ARIHPWH-80-T1,210$222
LG APHWC802D1,210$222
LG APHWC802L1,210$222
LG APHWC802M1,210$222
Friedrich PROH80 T2 FD400-301,213$222
Friedrich PROH80 T2 FD400-SO1,213$222

Run your own numbers

Your rate, your numbers

Per day
61¢
Per month
$18.49
Per year
$222

1,210 kWh/yr × 18.3¢/kWh = $222/yr

Prefilled with this model's certified 1,210 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 Lennox WHHP080T45MD240S use?
ENERGY STAR certifies the Lennox WHHP080T45MD240S at 1,210 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 Lennox WHHP080T45MD240S cost to run per month?
About $18.49 a month at the U.S. average residential rate (18.3¢/kWh) — 61¢ a day, or $222 a year. Your state's rate moves this up or down; see the table above.
Is the Lennox WHHP080T45MD240S energy efficient?
It uses 0% less electricity than the median certified electric water heater.
What does the Lennox WHHP080T45MD240S cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $159 a year in Nevada (13.1¢/kWh) and $638 in Hawaii (52.7¢/kWh).

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