Running cost for the KOOLMORE KM-RUF-42C
At 260 kWh/yr, the KOOLMORE KM-RUF-42C's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified freezer.
That $49 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
Efficient, or not, for a freezer
Against the category average of 401 kWh/yr, this model uses 35.2% less, ranking 108 of 658 freezers tracked here for running cost. That average is drawn from all 658 freezers ENERGY STAR currently certifies, not an outside number, a $27/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the KOOLMORE KM-RUF-42C: Danby Designer DUFM043A2* ($49/yr, 260 kWh/yr), then VITARA VLUF0430EW ($49/yr, 260 kWh/yr).
Comparing KOOLMORE's own models
Of the 4 ENERGY STAR certified freezers KOOLMORE makes, the KM-RUF-42C is the cheapest to run, $47/year less than KOOLMORE's priciest, the KM-PRC-F24.
Lifespan
NAHB's Study of Life Expectancy of Home Components does not publish a figure for freezers, so no lifetime cost is shown here rather than a guessed one. The annual and monthly figures above stand on their own.
Is it worth replacing?
Efficient as certified freezers go, $49/year is a reasonable baseline if you're comparing what else is on the market.
Compare current ENERGY STAR certified freezers before buying.
If you're keeping it
A freezer like the KOOLMORE KM-RUF-42C is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
Where this number comes from
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. The full Freezer category page shows all 658 freezers ranked by cost; the state-rate guide covers the half of this number that isn't the appliance.