Appliances / Freezers / KOOLMORE
KOOLMORE KM-RUF-21S: $89 a year to run
This freezer uses 492 kWh of electricity a year. At the U.S. average price that is $89 a year and $1,074 over a typical 12-year life. It ranks #281 of 416 upright freezer models for running cost.
- Price. Check what it costs at the store (links below).
- Plus running cost. Add $1,074 of electricity over 12 years. That is the part the price tag hides.
- Compare. Pick your state to see your real number, then check the cheaper-to-run models of the same size.
Where to buy
Compare the price, then add the running cost below to get the true cost.
Cost to run where you live
492 kWh a year (ENERGY STAR test figure) × 18.19¢ per kWh, the average residential price in the U.S. for Jan–Aug 2026 (EIA). Your bill depends on your utility and how you use it.
Cheaper to run, same type and size
Or see every large (15 cu ft and up) model ranked.
| Frigidaire FFUE2024A series | 20 cu ft | $77/yr | saves $148 |
| Frigidaire FFUE1826AW | 18 cu ft | $82/yr | saves $94 |
| GE FUF18DZR series | 17.9 cu ft | $82/yr | saves $94 |
| Frigidaire GRDF1911A series (with auto defrost) | 18.8 cu ft | $84/yr | saves $68 |
Specs
| Brand | KOOLMORE |
| Model | KM-RUF-21S |
| Type | Upright Freezer |
| Energy use | 492 kWh / year |
| Federal maximum for this type | 547 kWh / year |
| Features | Auto defrost |
Specs and energy use from the ENERGY STAR certified products list (U.S. EPA). An asterisk in a model number stands for colour or finish codes. HouseholdLeak is not affiliated with ENERGY STAR or the EPA.
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