Liebherr CNsdb 5223 Plus NoFrost
Our verdict · The one to buy if lifetime running cost, silence and longevity beat upfront price.
Buy it if
You value the lowest running cost, near-silent operation and a decade-long guarantee, and you're happy to pay a premium to get them.
Skip it if
Your budget is the binding constraint, or if you don't run an open-plan kitchen where the quiet motor pays off.
Where to get it
Liebherr CNsdb 5223 Plus NoFrost
~£1,099
Indicative price at the time of review.
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If you plan to keep a fridge freezer for a decade, the Liebherr CNsdb 5223 Plus makes a strong case despite its price. It is the only pick here rated energy class B on the current A-G scale, at roughly 201 kWh/yr, so it is the cheapest to run of the five, and at 34 dB(A) SuperSilent it is the quietest, which matters in an open-plan kitchen-diner. Its DuoCooling system uses two separate refrigeration circuits so fridge and freezer air never mix, and an EasyFresh drawer helps keep unwrapped produce fresh. A 10-year manufacturer's guarantee is available on registration, the longest cover here. It ranks just behind the Bosch only because it costs roughly twice as much for a smaller 330L body (227L fridge / 103L freezer) — you gain efficiency, quietness, twin-circuit cooling and warranty, but give up a lot of upfront cash and some fridge space. At 185.5cm tall it fits more kitchens than the 203cm Bosch and Samsung. Pricing is indicative at around £1,099 and worth re-checking.
The good & the bad
Pros
- Best energy rating here (Class B) so cheapest to run over its life
- Quietest on the shortlist at 34 dB(A)
- Twin-circuit DuoCooling and up to a 10-year guarantee on registration
Cons
- Roughly twice the price of the Bosch for a smaller 330L body
- Overkill unless you value the efficiency, silence or longevity
How it compares
| Pick | WATTB Score | Price | Best for |
|---|---|---|---|
| 1.Bosch Serie 4 KGN39VLEAG | 88/100 | From ~£549 (indicative) | overall |
| 2.Liebherr CNsdb 5223 Plus NoFrostThis pick | 87/100 | ~£1,099 (indicative) | premium |
| 3.Samsung Series 5 RB38C605DB1 | 87/100 | From ~£679 (indicative) | large families |
| 4.Hisense RB390N4WC1 | 83/100 | From ~£275 (indicative) | value |
| 5.Beko CFG3552W | 72/100 | From ~£319 (indicative) | small kitchens |
Key facts
- Best for
- premium
- Typical cost
- ~£1,099 (indicative)
- Capacity
- 330L total (227L fridge / 103L freezer), 70/30
- Defrost
- NoFrost + DuoCooling twin circuits
- Noise
- 34 dB(A) SuperSilent
- Energy rating
- Class B, ~201 kWh/yr
- Warranty
- Up to 10-year guarantee on registration
- Dimensions (H x W x D)
- 185.5 x 59.7 x 67.5 cm
Researched by WATTB
- Published
- 20 September 2026
- Updated
- 20 September 2026
- Last verified
- 20 September 2026
- Sources
- 13 sources
We research and rank options from public data, official information and published reviews. How we research →
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