Model
Thermador T24ID905LP
Rank #429 means 428 of the 622 freezer models we track cost less to run each year; the 31st efficiency percentile means it uses less energy for its size than 31% of those models.
What does the Thermador T24ID905LP cost to run per year?
Do the math and the Thermador T24ID905LP's $84/yr puts it at rank #429 of 622, on the pricier side of the class. It uses 17% less energy than the U.S. federal standard model in its class, which would cost about $100/yr to run, a saving of roughly $16 a year. Normalized for capacity, it beats only 31% of freezer models we track, a below-average efficiency result. At 11.2 cu ft, it is a mid-size freezer for the class, which runs 1.1 to 23 cu ft; size and efficiency are the two levers behind the figure above, and this dataset does not carry a separate efficiency-factor column for this class.
Immediately around it on the leaderboard, the Miele F 2672 Vi at $84/yr runs a little cheaper and the Gaggenau RF463704 at $85/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A freezer typically stays in service for somewhere around 14 years; over that span, the Thermador T24ID905LP's $84/yr adds up to roughly $1176 in electricity alone, before purchase price or repairs.
Also sold as: Gaggenau RF463706.
By the numbers
The Thermador T24ID905LP 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 $84/yr, here is what the Thermador T24ID905LP adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Thermador T24ID905LP costs about $840. That is roughly $160 less than a standard model in its class, which would run closer to $1000 over the same ten years.
How the Thermador T24ID905LP compares
The freezer class we track runs from $25 to $120 a year. At $84/yr, it runs about $9 a year above the class median of $75, and it is about $59 a year more than the cheapest freezer to run at $25. Against the US federal standard model for its class at about $100/yr, the Thermador T24ID905LP uses 17% less energy.
What drives its running cost
At 11.2 cu ft, the Thermador T24ID905LP is a mid-size freezer for its class, which spans 1.1 to 23 cu ft with a median of 13.8 cu ft, neither the size advantage of a small unit nor the size penalty of a large one applies here, so its running cost is a fairer test of efficiency alone.
- Interior volume. Cubic feet of frozen storage is the first lever behind a freezer's running cost, ahead of insulation or defrost type.
- Insulation and defrost type. Two freezers of the same size can differ meaningfully on running cost based on insulation quality and whether they run an automatic-defrost heater.
- Chest vs upright design. Chest freezers open from the top, so cold air, which sinks, stays inside when the lid opens; upright freezers lose more cold air per door opening for a similar capacity.
Common questions
Is the Thermador T24ID905LP cheap to run?
Not especially. At $84 a year it ranks #429 of 622 freezer models we track, in the pricier part of its class to run, though its size and features may still justify that for your needs.
How much does the Thermador T24ID905LP cost per month?
Roughly $7.02/mo, spreading the $84/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 454 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $84 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Thermador T24ID905LP for its size?
31st percentile once size is factored in. That means its size-adjusted efficiency is not the main reason for the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 430 | Miele F 2672 Vi11.2 cu ft | $84 |
| 429 | Gaggenau RF46370611.2 cu ft | $84 |
| 428 | Zline RBCFVL-188.7 cu ft | $84 |
| 427 | Vitara VBCR1660EWE8.7 cu ft | $84 |
| 426 | Kucht KR180TF8.7 cu ft | $84 |
Source
ES_0031649_T24ID905LP_08312020054816_80044911View certified freezer listingsENERGY STAR data as of July 2026Thermador and T24ID905LP 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.