Model
Hisense RT180N3S*EH
Rank #575 means 574 of the 1,000 refrigerator models we track cost less to run each year; the 89th efficiency percentile means it uses less energy for its size than 89% of those models.
What does the Hisense RT180N3S*EH cost to run per year?
The Hisense RT180N3S*EH holds rank #575 of 1,000 on running cost, at about $68 a year, an unremarkable but typical figure for the class. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $76/yr to run, a saving of roughly $8 a year. Size-adjusted, this model beats 89% of refrigerator models we track on efficiency, one of the stronger results in its class. This class has no published efficiency-factor figure beyond annual kWh itself, so at 18.1 cu ft (the class spans 1.2 to 31.7), size is the clearest lever we can point to for this model's running cost.
Immediately around it on the leaderboard, the Commercial Cool CCR1800GW at $68/yr runs a little cheaper and the Marathon MFF184SS at $68/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A refrigerator typically stays in service for somewhere around 12 years; over that span, the Hisense RT180N3S*EH's $68/yr adds up to roughly $816 in electricity alone, before purchase price or repairs.
Also sold as: Marathon MFF184SS, Sh SH513-WW.
By the numbers
The Hisense RT180N3S*EH normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $68/yr, here is what the Hisense RT180N3S*EH adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Hisense RT180N3S*EH costs about $680. That is roughly $80 less than a standard model in its class, which would run closer to $760 over the same ten years.
How the Hisense RT180N3S*EH compares
The refrigerator class we track runs from $8 to $149 a year. At $68/yr, it runs about $4 a year above the class median of $64, and it is about $60 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $76/yr, the Hisense RT180N3S*EH uses 10% less energy.
What drives its running cost
At 18.1 cu ft, the Hisense RT180N3S*EH is a large refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, size is usually the single biggest lever behind a running-cost figure, and at this end of the range there is more capacity to service, which tends to push the number up.
- Interior volume. More cubic feet of cold air to maintain generally means a bigger compressor and a higher running-cost figure, even among efficient models.
- Counter depth vs standard depth. Standard-depth models generally offer more interior volume per unit of width than counter-depth models, a tradeoff between built-in looks and cubic feet.
- Compressor technology. How a compressor cycles, full on/off versus a variable-speed inverter design, is one of the biggest hidden differences behind two fridges with similar cubic feet but different running costs.
- Placement and ventilation. Ventilation clearance around the back and top matters more than most owners expect; a fridge starved of airflow runs its compressor longer to hold the same temperature.
Common questions
Is the Hisense RT180N3S*EH cheap to run?
Roughly, yes. Its $68/yr figure is close to the class median, ranking #575 of 1,000, neither a bargain nor a splurge on running cost.
How much does the Hisense RT180N3S*EH cost per month?
About $5.68 a month, which is the $68 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 367 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $68 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Hisense RT180N3S*EH for its size?
89th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 574 | Commercial Cool CCR1800GW18.2 cu ft | $68 |
| 573 | Wood'S WFF180W18.2 cu ft | $68 |
| 572 | Lg LT18SO000S17.9 cu ft | $68 |
| 571 | Frigidaire FRTE1835AB18.2 cu ft | $68 |
| 570 | Frigidaire FFHT1814YB18.2 cu ft | $68 |
Source
ES_1110877_RT180N3S*EH_030520260354371_5950422View certified refrigerator listingsENERGY STAR data as of July 2026Hisense and RT180N3S*EH are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.