WM9998H*A (LG SIGNATURE, ENERGY STAR Most Efficient) uses 108 kWh per year, an estimated $18.36/yr to run, ranking 36th cheapest of 80 sampled clothes washers, 2% below the $18.70/yr median of the 80 sampled models.
Certification: ENERGY STAR Most Efficient
WM9998H*A
Paste into the Amazon search box to find this exact modelAs an Amazon Associate I earn from qualifying purchases.
| Cost rank in category | 36th of 80 |
| Cost percentile | bottom 44% |
| Vs category median | 2% below ($18.70/yr) |
| Rank within same status | 5th of 6 (Median $16.83/yr) |
| Rank within similar capacity | 3rd of 25 · volume cubic feet 4.64~6.96 (Median $36.21/yr) |
| Category low to high | $6.63/yr ~ $36.38/yr |
| Spec | Value |
|---|---|
| load configuration | Front Load |
| special type | Combination All-in-One Washer/Dryer |
| additional washer features | None |
| intended market | Residential |
| volume cubic feet | 5.80 |
| width inches | 29.0 |
| integrated modified energy factor imef | 3.2 |
| us federal standard imef | 1.84 |
| annual energy use kwh year | 108 |
| integrated water factor iwf | 2.6 |
| us federal standard iwf | 4.7 |
| annual water use gallons year | 4426 |
| drum capacity for the dryer in a combination all in one washer dryer | 5.8 |
| heat pump technology for the dryer in a combination all in one washer dryer | Heat Pump |
| combined energy factor cef for the dryer in a combination all in one washer dryer | 7.60 |
| estimated annual energy use kwh yr for the dryer in a combination all in one washer dryer | 315 |
| Model | Certification | Est. energy cost |
|---|---|---|
| WM9700H*A | ENERGY STAR Most Efficient | $18.36/yr |
| MLTW54M5CHG | ENERGY STAR Certified | $36.38/yr |
| MLTW54M5CCG | ENERGY STAR Certified | $36.38/yr |
| WD80H53*H* | ENERGY STAR Certified | $17.51/yr |
| MLFW53S4BBW | ENERGY STAR Certified | $19.89/yr |
The LG SIGNATURE WM9998H*A is certified at 108 kWh per year, which works out to about $18.36/yr at the flat rate assumed on this site. Certified figures come from standardized test procedures, so your actual bill varies with usage and your local electricity rate.
Among the 80 clothes washers compared on this site, the LG SIGNATURE WM9998H*A ranks 36th cheapest to run and sits in the bottom 44% of the cost range. That is 2% below the category median of $18.70/yr. The cheapest sampled model runs at $6.63/yr and the most expensive at $36.38/yr.
The LG SIGNATURE WM9998H*A is listed as ENERGY STAR Most Efficient. Among the 6 sampled clothes washers with that status the median running cost is $16.83/yr, and the LG SIGNATURE WM9998H*A ranks 5th cheapest within that group. Certification status reflects efficiency relative to product class, not absolute energy use.
Using the certified volume cubic feet value of 5.8, 25 sampled models fall within +/-20% (4.64 to 6.96), and the LG SIGNATURE WM9998H*A ranks 3rd cheapest among them. The median for that size band is $36.21/yr. Comparing within a size band is more meaningful than comparing certification labels.
Simple estimate, 30 days per month (assuming $0.17/kWh)