Whirlpool H186AA51(3B)
802 kWh a year DOE CCD (opens in a new tab) (the U.S. Department of Energy’s Compliance Certification Database) · 2026-10-25with an electric water heater and an electric dryer
IMEF 1.84 filed efficiency; the yearly figure is computed from it
A front-loading washer of standard size (1.6 cubic feet or more). Drum: 5 cubic feet.
Label numbers this filing covers (1)
The model number on your rating plate may be any of these; each is filed under this one listing.
- WFW8620H**
Checking the Whirlpool H186AA51(3B), sold as WFW8620H**? At DOE's test use, it takes 802 kWh a year with an electric water heater and an electric dryer. It also uses 6,932 gallons of water a year. Its IMEF, the cubic feet of laundry washed per kilowatt-hour, dryer included, is 1.84. That rating equals the federal minimum for its class.
Energy and water per year
802 kWh a year with an electric water heater and an electric dryer
Computed by this site from the registry's IMEF and drum capacity at DOE's test use of 295 cycles a year. IMEF counts the washer, heating its water electrically, and the electric dryer's work on what the spin leaves wet — so this is the total for that kind of home. How it is calculated
Not published: The washer's own share, without the dryer
DOE's database files IMEF, which folds the dryer in; only ENERGY STAR splits the machine out, and it lists this model under no matching rating.
The total above, and the IMEF it comes from, stand as filed.
Not published: A home with a gas water heater, a gas dryer or line drying
DOE's rating assumes electric water heating and an electric dryer and files no split between the machine, the water heating and the drying.
Such a home uses less electricity than the total above; how much less, no registry says for this model.
6,933 gallons of water a year
Computed from the registry's IWF and drum capacity at the same 295 cycles a year.
Not published: What the water costs
water and sewer rates are set by thousands of local utilities and no free national source publishes them.
The gallons above are the figure to multiply by your own water and sewer rate.
This model is rated exactly at the federal minimum IMEF for its class, like many others; no rank is claimed inside that tie.
What you can do. Federal minimum means this model uses as much energy as the law allows for its class. 323 washers in the same class file a higher IMEF; at the same drum size and use, a higher IMEF is less energy a year. See the most efficient washers in each class
DOE CCD (opens in a new tab) · 2026-10-25What it costs to run where you live
See what the middle washer of each product class costs to run on your rate.
What the registry files
From DOE CCD · 2026-10-25
- IMEF (Integrated Modified Energy Factor) how many cubic feet of drum a washer cleans for each kilowatt-hour, counting the machine, heating the water and drying what the spin leaves wet
- 1.84 Compared only with other front-loading, standard size washers.
- IWF (Integrated Water Factor) how many gallons of water a washer uses per cycle for each cubic foot of drum
- 4.7
- Clothes container capacity the volume of the drum in cubic feet, as DOE's test measures it
- 5 ft³
- Federal minimum IMEF for this class
- 1.84
Installed cost and service life
Not published: Installed cost range
NLR REMDB's cost model needs the washer's own yearly energy use, which only ENERGY STAR files — and it lists no matching rating for this model.
Ask retailers or installers for a written quote that names this model number. The yearly energy, water and running cost on this page do not depend on it.
Service life: DOE’s cost database assumes 11 years for front-loading washers. That is a class assumption, not this model’s rating or a warranty — no registry publishes either.
NLR REMDB v4.0.0 · 2026-09-29Safety record
No CPSC recall names this model.
Checked against the CPSC recall database. CPSC does not publish a model-level match for this product category, so this list is curated by hand from the manufacturer's recall filings.
CPSC · 2026-09-29What these figures mean
Where the hot water in this figure comes from
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Water heaters
The other big user of hot water in a home, with every model on file.
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What a water heater costs to run
Prices a water heater’s efficiency against your own utility’s tariff.
Closest in its class
- TruArctic WF5S2845BW 449 kWh a year
- Whirlpool H186AA50(3B) 802 kWh a year
- Whirlpool H186AA52(3B) 802 kWh a year
- Whirlpool H186AA53(3B) 802 kWh a year
Keep going
How every figure on this page is calculated
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Front-load washers ranked by filed efficiency (IMEF)
Ranked by filed IMEF inside each class, recalled models left out.
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Most energy-efficient clothes washers
Ranked by filed IMEF inside each class, recalled models left out.
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Top load vs front load washing machine
The filed IMEF, yearly energy, water, drum size and installed-cost range of every standard-size top-loading and front-loading washer, side by side from the DOE registry.
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How much water and electricity does a washing machine use?
The yearly gallons and kWh of every residential washer on file, by product class with the full spread, plus the exact per-cycle figures, and the watts no registry files declared as a gap.
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Every Whirlpool washer on file
What the brand files, by product class.
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Every clothes washer on file
All four product classes, from the DOE registry.
The 802 kWh figure is calculated by this site; the registry does not file it. The calculation uses the registry's IMEF and the capacity, the drum's volume in cubic feet, which is 5 for this model. It assumes DOE's test count of cycles per year. IMEF includes the dryer, so this total covers the washer, an electric water heater and an electric dryer together. There is no figure for the machine alone. DOE's certification database (CCD) files only IMEF. ENERGY STAR is the one source that reports the machine's own share, and it lists no matching rating for the H186AA51(3B). The registry values were retrieved from the CCD on 2026-10-25. See how the yearly energy and water figures are calculated for the full method.
Read the rest
The 6,932 gallons yearly figure is also calculated by this site. It uses IWF, the gallons of water used per cycle for each cubic foot of drum, which is 4.7 for this model. That value is multiplied by the 5 cubic foot capacity and by the same yearly count of test cycles. The total applies only at DOE's test use, and the registry does not record how many cycles any household actually runs. This page does not show what that water costs. No free national source publishes local water and sewer rates, so no cost is estimated here.
The class has 360 models registered as front-loading and standard size, and their median IMEF is 2.76. At 1.84, this model is below that median, and a lower IMEF means less laundry washed per kilowatt-hour. Its 1.84 is exactly the federal minimum IMEF for the class, and 37 models in the class are rated at that same minimum. These models all have the same IMEF, so the page gives no rank within that group. No installed price range is published either. The cost database needs the washer's own yearly energy, which only ENERGY STAR files. Running cost is also left out of this text because it depends on your own utility's electricity tariff. The page calculates it from your ZIP code. You can compare other models on the clothes washer pages.