LG WT7100C
Filed with DOE as WT7100C*. An asterisk in a model number stands for any character: this one filing covers several variants.
644 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 2.06 filed efficiency; the yearly figure is computed from it
A top-loading washer of standard size (1.6 cubic feet or more). Drum: 4.5 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.
- WT7060C*
- WT7100C*
Checking the LG WT7100C*? At DOE's test use, this top-loading washer uses 644 kWh of electricity a year with an electric water heater and an electric dryer. It uses 5,708 gallons of water a year. Its IMEF, the cubic feet of laundry washed per kilowatt-hour, dryer included, ranks 37th highest of 870 in its class.
Energy and water per year
644 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: 220 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.
5,708 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
- 2.06 Compared only with other top-loading, standard size washers.
- IWF (Integrated Water Factor) how many gallons of water a washer uses per cycle for each cubic foot of drum
- 4.3
- 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
- 1.57
From ENERGY STAR · 2026-10-25
- ENERGY STAR
- ENERGY STAR certified.
Installed cost and service life
$1,055–$1,602 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 top-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 WT7010C 644 kWh a year
- LG WT7050C 644 kWh a year
- LG WT7150C 716 kWh a year
- LG WT7155C 687 kWh a year
Keep going
How every figure on this page is calculated
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Top-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 computes the 644 kWh total; the registry does not publish it. The total combines the model's IMEF of 2.06 with its capacity, the drum's volume in cubic feet, of 4.5, at DOE's test use. It covers the washer, its electrically heated water and an electric dryer. ENERGY STAR files a separate machine-only figure of 220 kWh a year for this model. That figure counts only the machine and its electrically heated water. It does not include the dryer. Compared side by side, the larger figure adds the dryer's share to the smaller one. Neither figure covers a home that heats water or dries clothes with gas, and this page does not have that home's electricity use. The source is DOE CCD, retrieved 2026-10-25. The page on how the yearly energy and water figures are calculated explains each step.
Read the rest
This site also computes the 5,708 gallons figure. It combines the model's IWF, the gallons of water used per cycle for each cubic foot of drum, of 4.3, with its 4.5 capacity at DOE's test use. The result is a yearly volume under that test use, not a measured household total. A household that runs more or fewer loads than the test assumes will use a different amount, and this page does not have that amount. The page states no cost for this water. Local water and sewer rates vary, and no free national source publishes them. Any cost figure would therefore be an estimate, so the volume is given without one.
Among the 870 models registered as top-loading, standard size, the median IMEF is 1.57. This model's IMEF of 2.06 is above that median. Of those models, 652 are rated at the federal minimum IMEF for the class, and this model is rated above that minimum. The registry also lists it as sold as WT7060C*. The installed price range has its own block on this page, with its source and date. It is a modeled range, not a quote. The text gives no running cost because that depends on your own utility electricity tariff, so the page works it out from your ZIP. Other models are listed on the page of all clothes washers.