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Klarstein Iceblock Review | 44 Data compared

Avg. price:~£520Cooling capacity:12000 BTU/hMaximum room size:59 m²Maximum noise level:65 dBHeating function:noCooling Energy Efficiency Class:A

Klarstein Iceblock Review: Compare 44 technical specifications and user reviews to see how this product ranks in the Portable Air Conditioners category and whether it is worth buying.

Klarstein Iceblock
7.8/10

Overall score

Score
7.8/ 10
✕
What it is
An overall evaluation of products in the Portable Air Conditioners category, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best products in the Portable Air Conditioners category.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 87% of models
Score components

80%

7.8

Technical score

20%

?

User score

â–²Better than 87% of portable air conditioners
7.2

Value for money

Value for money
7.2/ 10
✕
What it is
An indicator that combines the overall score of products in the Portable Air Conditioners category with their prices.
When it matters
When you are comparing products in the Portable Air Conditioners category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 53% of models
Score components

70%

7.8

Overall score

30%

5.8

Price

â–²Better than 53%
7.8

Technical score

Technical score
7.8/ 10
✕
What it is
An assessment of technical performance for products in the Portable Air Conditioners category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Portable Air Conditioners category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 87% of models
Score components

55%

8.1

Performance

30%

7.1

Features

15%

8.4

Design

â–²Better than 87%
?

User score

User score
8.0/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Portable Air Conditioners category.
When it matters
When you want to know how products in the Portable Air Conditioners category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 62% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

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Best prices
    N/A~ £520
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of portable air conditioner Klarstein Iceblock

Technical score
Technical score
7.8/ 10
✕
What it is
An assessment of technical performance for products in the Portable Air Conditioners category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Portable Air Conditioners category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 87% of models
Score components:

55%

8.1

Performance

30%

7.1

Features

15%

8.4

Design

7.8
User score
User score
8.0/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Portable Air Conditioners category.
When it matters
When you want to know how products in the Portable Air Conditioners category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 62% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

?
Popularity
Popularity
1.0/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Portable Air Conditioners category.
When it matters
When you prefer products in the Portable Air Conditioners category that have been chosen and reviewed by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 99% of models
Popularity:
Klarstein Iceblock has a popularity score of 1 point, which is lower than 66.3% of products in this category.
1.0
Value for money
Value for money
7.2/ 10
✕
What it is
An indicator that combines the overall score of products in the Portable Air Conditioners category with their prices.
When it matters
When you are comparing products in the Portable Air Conditioners category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 53% of models
Score components:

70%

7.8

Overall score

30%

5.8

Price

7.2
Cooling capacity
12,000 BTU/h
Market range: <7k BTU/h – >12k BTU/h
This portable air conditioner delivers 12,000 BTU/h cooling capacity, which is higher than that of 71.3% of portable air conditioners and equal to that of 19.7% of portable air conditioners.
Rated input power
?
Cooling Energy Efficiency Class
A
This portable air conditioner has cooling energy efficiency class A, which ranks lower than 10.7% of portable air conditioners and equal to 89.4% of portable air conditioners.
Heating energy efficiency class
?
Number of speeds
3
Market range: <0 – >5
This portable air conditioner offers 3 fan speeds, which is more than 36.8% of portable air conditioners and equal to 61.1% of portable air conditioners.
Show more
Fan-only mode
yes
This portable air conditioner includes a fan-only mode. 99.5% of portable air conditioners support this mode.
Airflow direction control
automatic
This portable air conditioner provides automatic airflow direction control, which ranks higher than 47.3% of portable air conditioners and equal to 52.7% of portable air conditioners.
Night mode
yes
This portable air conditioner includes a dedicated night mode. 74.3% of portable air conditioners offer night mode.
Timer
yes
This portable air conditioner includes a built-in timer. 99.5% of portable air conditioners feature a timer.
Maximum timer duration
24 hours
Market range: <0 hours – >25 hours
This portable air conditioner supports a timer of up to 24 hours, which is longer than that of 7.4% of portable air conditioners and equal to that of 92.6% of portable air conditioners.
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Color
white
Display
yes
This portable air conditioner includes an integrated display. 99.5% of portable air conditioners feature a display.
Control type
touch
Remote control
yes
This portable air conditioner comes with a remote control. 99% of portable air conditioners include a remote.
Handles
yes
This portable air conditioner includes built-in handles for easier carrying. 99.5% of portable air conditioners feature handles.
Show more

Klarstein Iceblock vs the average portable air conditioner

246810TotalPerformanceFeaturesDesign
  • 3,000 BTU/h higher cooling capacity
    This portable air conditioner delivers higher cooling capacity than the average portable air conditioner (12000 BTU/h vs 9000 BTU/h).
    12,000 BTU/h vs 9,000 BTU/h
  • 29 m² larger room coverage
    This portable air conditioner covers a larger room area than the average portable air conditioner (59 m² vs 30 m²).
    59 m² vs 30 m²
  • 50 m³/h higher high-speed airflow
    This portable air conditioner delivers higher high-speed airflow than the average portable air conditioner (400 m³/h vs 350 m³/h).
    400 m³/h vs 350 m³/h
  • 0.5 cm shallower cabinet
    This portable air conditioner is shallower than the average portable air conditioner (35 cm vs 35.5 cm).
    35 cm vs 35.5 cm
  • 1.4% better value for money
    Klarstein Iceblock offers better value for money than the average portable air conditioner (7.23 vs 7.1).
    7.23 vs 7.13
  • 1.4% better value for money
    Klarstein Iceblock offers better value for money than the average portable air conditioner (7.23 vs 7.1).
    7.23 vs 7.13
  • 3,000 BTU/h higher cooling capacity
    This portable air conditioner delivers higher cooling capacity than the average portable air conditioner (12000 BTU/h vs 9000 BTU/h).
    12,000 BTU/h vs 9,000 BTU/h
  • 29 m² larger room coverage
    This portable air conditioner covers a larger room area than the average portable air conditioner (59 m² vs 30 m²).
    59 m² vs 30 m²
  • 50 m³/h higher high-speed airflow
    This portable air conditioner delivers higher high-speed airflow than the average portable air conditioner (400 m³/h vs 350 m³/h).
    400 m³/h vs 350 m³/h
  • 0.5 cm shallower cabinet
    This portable air conditioner is shallower than the average portable air conditioner (35 cm vs 35.5 cm).
    35 cm vs 35.5 cm
  • No automatic fan-speed control
    This portable air conditioner does not adjust fan speed automatically, while the average portable air conditioner does.
  • 2 °C lower maximum temperature
    This portable air conditioner has a lower maximum temperature setting than the average portable air conditioner (30 °C vs 32 °C).
    30 °C vs 32 °C
  • 25.5% higher weight
    This portable air conditioner is heavier than the average portable air conditioner (32 kg vs 25.5 kg).
    32 kg vs 25.5 kg
  • 1 dB louder at maximum output
    This portable air conditioner is louder at maximum output than the average portable air conditioner (65 dB vs 64 dB).
    65 dB vs 64 dB
  • 3.6 l/24 h lower dehumidification capacity
    This portable air conditioner offers lower moisture removal than the average portable air conditioner (28.8 l/24 h vs 32.4 l/24 h).
    28.8 l/24 h vs 32.4 l/24 h
  • 48.6% more expensive
    Klarstein Iceblock is more expensive than the average portable air conditioner (£520 vs £350).
    £520 vs £350
  • 3.5 cm taller cabinet
    This portable air conditioner is taller than the average portable air conditioner (74.5 cm vs 71 cm).
    74.5 cm vs 71 cm
  • 6.01x less popular
    Klarstein Iceblock is less popular than the average portable air conditioner (1 vs 6).
    1 vs 6.01
  • 48.6% more expensive
    Klarstein Iceblock is more expensive than the average portable air conditioner (£520 vs £350).
    £520 vs £350
  • 6.01x less popular
    Klarstein Iceblock is less popular than the average portable air conditioner (1 vs 6).
    1 vs 6.01
  • No automatic fan-speed control
    This portable air conditioner does not adjust fan speed automatically, while the average portable air conditioner does.
  • 2 °C lower maximum temperature
    This portable air conditioner has a lower maximum temperature setting than the average portable air conditioner (30 °C vs 32 °C).
    30 °C vs 32 °C
  • 1 dB louder at maximum output
    This portable air conditioner is louder at maximum output than the average portable air conditioner (65 dB vs 64 dB).
    65 dB vs 64 dB
  • 1 dB louder minimum operation
    This portable air conditioner is louder at minimum output than the average portable air conditioner (52 dB vs 51 dB).
    Lowest stated operating noise.
    52 dB vs 51 dB
  • 3.6 l/24 h lower dehumidification capacity
    This portable air conditioner offers lower moisture removal than the average portable air conditioner (28.8 l/24 h vs 32.4 l/24 h).
    28.8 l/24 h vs 32.4 l/24 h
  • 25.5% higher weight
    This portable air conditioner is heavier than the average portable air conditioner (32 kg vs 25.5 kg).
    32 kg vs 25.5 kg
  • 3.5 cm taller cabinet
    This portable air conditioner is taller than the average portable air conditioner (74.5 cm vs 71 cm).
    74.5 cm vs 71 cm
  • 4 cm wider cabinet
    This portable air conditioner is wider than the average portable air conditioner (42 cm vs 38 cm).
    42 cm vs 38 cm
  • 6.7% larger external volume
    This portable air conditioner has a larger external volume than the average portable air conditioner (109515 cm³ vs 102623.4 cm³).
    109,515 cm³ vs 102,623.407656 cm³

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

T
twofoodiesonaplane.com
18/08/2025
Summary of the review
Living with Klarstein Portable AC in Germany
S
smart-home-fox.de
21/06/2026
Summary of the review
The 5 Best Portable Air Conditioners: Review & Comparison | 2026
(Translated)Show original

Third-party reviews

What we like about Klarstein Iceblock

  • Powerful and effective room cooling capacity (up to 12,000 BTU)
  • Convenient smart home integration via Wi-Fi and the Klarstein mobile app
  • Versatile 3-in-1 functionality operating as an air conditioner, fan, and dehumidifier
  • Smooth mobility facilitated by built-in floor rollers and side handles
  • User-friendly controls featuring a digital display, remote control, and a 24-hour programmable timer
  • Comes equipped with an easy-to-install window sealing kit and exhaust hose

What we don't like about Klarstein Iceblock

  • High operating noise levels (up to 65 dB), making it disruptive for light sleepers or bedroom use
  • Bulky, heavy, and physically space-consuming design
  • Inefficiencies inherent to single-pipe systems, where negative pressure can pull warm outside air back into the room
  • Noticeable impact on electricity bills due to high power consumption under continuous maximum load

Verdict

The Klarstein Iceblock is a 3-in-1 portable air conditioner, fan, and dehumidifier featuring a powerful 12,000 BTU (3.5 kW) cooling capacity, a 1,345-watt power consumption, and an energy efficiency class A rating utilizing eco-friendly R290 refrigerant. Designed to manage indoor climates in spaces spanning 35 to 59 m², it provides an airflow rate up to 400 m³/h, a 1.2 l/h dehumidifying performance, and an adjustable temperature range of 16 to 31 °C. Its primary advantages include easy DIY installation with an included window sealing kit, a programmable 24-hour timer, a dedicated low-noise sleep mode (down to 52 dB), and smart integration via the Klarstein app compatible with Amazon Alexa and Google Home. However, it can become quite loud at maximum output, reaching noise levels up to 65 dB, and the high-brightness LED control panel can be distracting in dark bedrooms.

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