Appliances / Freezers / Thermador
Thermador T18IF100SP
9.9 cu ft · Upright Freezer freezer
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- Price. Check what it costs at the store.
- Plus running cost. Add $840 of electricity over 12 years. That is the part the price tag hides.
- Compare. Pick your state below, then check the cheaper-to-run models of the same size.
About the Thermador T18IF100SP
The Thermador T18IF100SP is a 9.9 cu ft upright freezer freezer certified by ENERGY STAR. Its official test figure is 385 kWh of electricity a year, which at the U.S. average price of 18.19¢ per kWh comes to $70 a year, or $840 over a typical 12-year life.
That is 25% less energy than the federal maximum for this type of freezer (516 kWh a year), a saving of about $24 a year compared with a model that only just meets the standard.
Among 416 upright freezer models it ranks #42 for running cost, in the cheapest 10%. The cheapest model of this type would save $301 in electricity over 12 years, though it may differ in size and features.
If you want the same type and a similar size for less to run, the Danby Designer DUFM085A4TDD uses 247 kWh a year and would save about $301 over 12 years.
Listed features: auto defrost.
Cost to run where you live
385 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 medium (7 to 15 cu ft) model ranked.
| Danby Designer DUFM085A4TDD | 8.5 cu ft | $45/yr | saves $301 |
| Danby Designer DUFM085A4 series | 8.5 cu ft | $45/yr | saves $301 |
| Danby Premiere DUFM085A3 series | 8.5 cu ft | $45/yr | saves $301 |
| Kenmore KMR11MS2EA16C | 11.1 cu ft | $45/yr | saves $297 |
Specs
| Brand | Thermador |
| Model | T18IF100SP |
| Type | Upright Freezer |
| Energy use | 385 kWh / year |
| Federal maximum for this type | 516 kWh / year |
| Size | 9.9 cu ft |
| Features | Auto defrost |
| Defrost | Automatic |
| Built-in | Yes |
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.
Questions people ask
How much does the Thermador T18IF100SP cost to run?
About $70 a year at the U.S. average electricity price (18.19¢/kWh), based on its ENERGY STAR rating of 385 kWh a year. In a state with expensive power it can be much more; pick your state on this page to see your number.
How much will the Thermador T18IF100SP cost in electricity over its life?
About $840 over 12 years, a typical life for a freezer. Add that to the price you pay to get the true cost to own.
Is the Thermador T18IF100SP energy efficient?
Yes. It is ENERGY STAR certified and uses 25% less energy than the federal maximum for its type.
Is there a cheaper freezer to run of the same type and size?
Yes. The Danby Designer DUFM085A4TDD uses 247 kWh a year, about $301 less in electricity over 12 years.
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