LG WM3670H…A
Filed with DOE as WM3670H*A. An asterisk in a model number stands for any character: this one filing covers several variants.
455 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: 4.5 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.
- WM3670H*A
To verify the LG WM3670H*A: this standard-size front-loading washer uses 455 kWh a year at DOE's test use, with an electric water heater and an electric dryer. The same test use gives 4,248 gallons of water a year. Its IMEF, the cubic feet of laundry washed per kilowatt-hour, dryer included, ranks 33rd highest of 360 in its class.
Energy and water per year
455 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: 100 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.
4,248 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
- 4.5 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
$1,202–$1,862 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) · 2026-04-01Service 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
- LG WM3500C 455 kWh a year
- LG WM3575C…+ 455 kWh a year
- LG WM3700H…A 455 kWh a year
- LG WM3900H…A 455 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 LG 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.
This site, not the registry, computes the 455 kWh yearly figure from two values in DOE's Compliance Certification Database, retrieved 2026-10-25. Those values are the IMEF of 2.92 and the capacity, the drum's volume in cubic feet, of 4.5. The calculation assumes DOE's test use and counts the washer, an electric water heater and an electric dryer together. ENERGY STAR files a separate machine-only figure of 100 kWh a year for this model. That figure covers the machine and its electrically heated water alone, with the dryer left out. Of the two figures, only 455 kWh includes the dryer, so they should not be compared as if they measured the same thing. The steps behind these numbers are set out in the method for the yearly energy and water figures.
Read the rest
Water use starts from IWF, the gallons of water used per cycle for each cubic foot of drum, which is 3.2 for this model. This site multiplies that factor by the 4.5 cubic-foot capacity at DOE's test use, giving 4,248 gallons a year. The yearly water total is this site's calculation; the registry supplies the factor and the capacity it rests on. No water cost is stated on this page for 4,248 gallons, and none is estimated. The reason is that no free national source publishes local water and sewer rates. A reader who knows their own water and sewer rate can apply it to the 4,248 gallons figure directly.
The comparison class is the 360 models registered as front-loading washers of standard size. Their median IMEF is 2.76; this model's 2.92 sits above it, which is the basis of the 33rd place given above. The model is also rated above the federal minimum IMEF for its class, where 37 of the 360 registered models sit. Running cost is not stated in this text, because it depends on the reader's own electricity tariff. Instead, the page computes that cost from the ZIP code the reader enters. The installed-price range sits in its own block with its source and date, as a modeled range and not a quote. Other front-loading models can be checked through the full list of clothes washer pages.