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Maytag H18vB950(3B)

513 kWh a year DOE CCD (opens in a new tab) (the U.S. Department of Energy’s Compliance Certification Database) · 2026-10-25

with an electric water heater and an electric dryer

IMEF 2.76 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 (2)

The model number on your rating plate may be any of these; each is filed under this one listing.

  • MHW6630H**
  • MHW6630M**

The Maytag H18vB950(3B) uses 513 kWh of electricity a year at DOE's test use, with an electric water heater and dryer. Under the same test use, this standard-size front-loader uses 4,531 gallons of water a year. Its IMEF, the cubic feet of laundry washed per kilowatt-hour, dryer included, is 2.76, equal to its class median.


Energy and water per year

513 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

The machine and its hot water alone, dryer not included: 143 kWh a year, as ENERGY STAR files it.

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) · 2026-10-25

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What it costs to run where you live

Enter your ZIP to see what this washer costs to run a year, with an electric water heater and an electric dryer, on your own utility’s electricity rate.

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
2.76 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

From ENERGY STAR · 2026-10-25

ENERGY STAR
ENERGY STAR certified.

Installed cost and service life

$1,276–$2,322 installed

Not a quote — a modeled range of what installers have charged for this class of unit; your price will vary with labor rates, access, and local code requirements.

Brought to current prices with Bureau of Labor Statistics indexes: equipment to August 2026, installation labor to April 2026–June 2026.

NLR REMDB (BLS PPI/ECI escalated) · 2026-04-01

Report an issue with this number

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 · 2026-09-29

Safety 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 · 2026-09-29

What these figures mean

The yearly figure of 513 kWh was computed by this site, not taken from the registry. It combines the registry's IMEF of 2.76 with a capacity, the drum's volume in cubic feet, of 4.8. Both inputs come from the DOE Compliance Certification Database, retrieved 2026-10-25, and are applied at DOE's test use. Because IMEF includes the dryer, this yearly figure assumes an electric dryer as well as an electric water heater. ENERGY STAR files a separate machine-only figure of 143 kWh a year for this model. That figure covers the washer and its electrically heated water alone, with the dryer left out. The two numbers answer different questions, so the larger one should not be read as the washer's own use. The steps behind the site's figure are set out in how the yearly energy and water figures are calculated.

Read the rest

The water figure of 4,531 gallons a year was also computed by this site. It uses this model's IWF, the gallons of water used per cycle for each cubic foot of drum, which the registry lists as 3.2. That factor is multiplied by the same capacity of 4.8 and by the number of cycles in DOE's test use. The result is a volume of water at test conditions, not a reading from any particular home. The page does not state a cost for this water, because no free national source publishes local water and sewer rates. A reader who knows the local rate can apply it to the 4,531 gallons figure.

This model is compared with the 360 models registered as front-loading and standard size. Its IMEF of 2.76 is equal to the class median of 2.76, and it is rated above the federal minimum for its class. By IMEF it ranks 101st highest of 360, while 37 models in the class sit at the federal minimum itself. The text does not name a running cost, because that cost depends on the reader's own utility electricity tariff. The page computes it from the reader's ZIP, so no single figure applies to every home. Other models in the same class can be checked through all clothes washer pages.

DOE CCD · 2026-10-25

Where the hot water in this figure comes from


Closest in its class


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