Maytag H18vB946(3B)
485 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 2.92 filed efficiency; the yearly figure is computed from it
A front-loading washer of standard size (1.6 cubic feet or more). Drum: 4.8 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.
- MHW6630H**
Verifying the Maytag H18vB946(3B), sold as MHW6630H**? At DOE's test use, it takes 485 kWh a year with an electric water heater and an electric dryer, and 4,531 gallons of water a year. Its IMEF, the cubic feet of laundry washed per kilowatt-hour, dryer included, is 2.92, above its class median of 2.76.
Energy and water per year
485 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.
4,531 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 above the federal minimum IMEF for its 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
- 2.92 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
- 3.2
- Clothes container capacity the volume of the drum in cubic feet, as DOE's test measures it
- 4.8 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
-
Water heaters
The other big user of hot water in a home, with every model on file.
-
What a water heater costs to run
Prices a water heater’s efficiency against your own utility’s tariff.
Closest in its class
- Maytag H18vB942(3B) 485 kWh a year
- Maytag H18vB943(3B) 485 kWh a year
- Maytag H18vB947(3B) 485 kWh a year
- Samsung WD53DBA9…H 535 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 Maytag 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 485 kWh figure is not a registry field. This site calculated it from the registry's IMEF of 2.92 and the model's capacity, the drum's volume in cubic feet, of 4.8, at DOE's test use. IMEF includes the dryer's work, so the total covers the washer, an electric water heater and an electric dryer together. The washer's own share is not available. DOE's database files only IMEF, and ENERGY STAR is the only source that reports the machine separately. ENERGY STAR lists no matching rating for this model. For the same reason, no installed price range is shown, because the cost database needs that machine-only figure. The inputs come from DOE's certification database, retrieved 2026-10-25. The method behind the yearly energy and water figures sets out each step.
Read the rest
The yearly water figure of 4,531 gallons is based on the registry's IWF, the gallons of water used per cycle for each cubic foot of drum. This model's IWF is 3.2. This site multiplied it by the 4.8 cubic-foot capacity and by DOE's yearly test cycle count. The result is the water the washer uses at test use, not a meter reading from a home. The data holds no class median for IWF, so how this water use compares within the class is not available. The water cost is not shown either. No free national source publishes local water and sewer rates, so the page puts no price on the 4,531 gallons.
Of the 360 models registered as front-loading and standard size, this model ranks 33rd highest by IMEF. The class median is 2.76, and this model's 2.92 is above it. A higher IMEF means more laundry washed per kilowatt-hour. The model is also rated above the federal minimum IMEF for its class, where 37 of the 360 models sit. The page's data does not include the value of that federal minimum. The running cost is not stated in the text, because it depends on the reader's own electricity tariff. The page calculates it from the reader's ZIP, using the 485 kWh total. Other models of this type are listed in the index of clothes washer pages.