OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Air Conditioners Methodology v1.0
Air Conditioners Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Air Conditioners Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
Explore Air Conditioners Methodology v1.0

Kältebringer KB35 Review | 46 Data compared

Avg. price:~£550Cooling capacity:3.5 kWSeasonal cooling efficiency (SEER):6.4Maximum indoor-unit sound power level:54 dB

Kältebringer KB35 Review: Compare 46 technical specifications and user reviews to see how this product ranks in the Air Conditioners category and whether it is worth buying.

Kältebringer KB35
8.2/10

Overall score

Score
8.2/ 10
✕
What it is
An overall evaluation of products in the 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 Air Conditioners category.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 87% of models
Score components

80%

7.9

Technical score

20%

9.3

User score

▲Better than 87% of air conditioners
7.4

Value for money

Value for money
7.4/ 10
✕
What it is
An indicator that combines the overall score of products in the Air Conditioners category with their prices.
When it matters
When you are comparing products in the Air Conditioners category and want a good balance between quality and price.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 69% of models
Score components

70%

8.2

Overall score

30%

5.5

Price

▲Better than 69%
7.9

Technical score

Technical score
7.9/ 10
✕
What it is
An assessment of technical performance for products in the Air Conditioners category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Air Conditioners category by technical performance, specifications, and available features.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 80% of models
Score components

40%

5.6

Performance

40%

9.6

Features

20%

9.2

Design

▲Better than 80%
9.3

User score

User score
9.3/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Air Conditioners category.
When it matters
When you want to know how products in the Air Conditioners category perform in everyday use and how reliable owners find them over time.
Score distribution
▼
<55-66-77-88-99-10
★ Better than 94% of models
Score components

70%

8.9

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
★Better than 94%
  • kaltebringer-kb35
  • kaltebringer-kb35
  • kaltebringer-kb35
  • kaltebringer-kb35
  • kaltebringer-kb35
  • kaltebringer-kb35
  • kaltebringer-kb35
  • kaltebringer-kb35
  • kaltebringer-kb35
  • kaltebringer-kb35
kaltebringer-kb35
kaltebringer-kb35
kaltebringer-kb35
kaltebringer-kb35
kaltebringer-kb35
kaltebringer-kb35
kaltebringer-kb35
kaltebringer-kb35
kaltebringer-kb35
kaltebringer-kb35
Best prices
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
Loading category ranking...

Air Conditioners model ranking

Ranked #14 of 178 models in Air Conditioners (Overall score)

Technical Specifications of air conditioner Kältebringer KB35

Technical score
Technical score
7.9/ 10
✕
What it is
An assessment of technical performance for products in the Air Conditioners category across these key areas: Performance, Features, Design.
When it matters
When you want to compare products in the Air Conditioners category by technical performance, specifications, and available features.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 80% of models
Score components:

40%

5.6

Performance

40%

9.6

Features

20%

9.2

Design

7.9
User score
User score
9.3/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Air Conditioners category.
When it matters
When you want to know how products in the Air Conditioners category perform in everyday use and how reliable owners find them over time.
Score distribution
▼
<55-66-77-88-99-10
★ Better than 94% of models
Score components

70%

8.9

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
9.3
Popularity
Popularity
10/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Air Conditioners category.
When it matters
When you prefer products in the Air Conditioners category that have been chosen and reviewed by many other buyers.
Score distribution
▼
<55-66-77-88-99-10
★ Better than 92% of models
Popularity:
Kältebringer KB35 has a popularity score of 10 points, which is higher than 91.6% of products in this category.
10
Value for money
Value for money
7.4/ 10
✕
What it is
An indicator that combines the overall score of products in the Air Conditioners category with their prices.
When it matters
When you are comparing products in the Air Conditioners category and want a good balance between quality and price.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 69% of models
Score components:

70%

8.2

Overall score

30%

5.5

Price

7.4
Split configuration
mono split
Cooling capacity
3.5 kW
Market range: <2.5 kW – >5.5 kW
This air conditioner delivers a cooling capacity of 3.5 kW, which is higher than that of 45.9% of air conditioners and the same as that of 20% of air conditioners.
Indoor-unit capacity configuration
12,000 BTU/h
Seasonal cooling efficiency (SEER)
6.4
Market range: <6 – >7.5
This air conditioner has a SEER rating of 6.4, which is higher than that of 57.1% of air conditioners and the same as that of 3.2% of air conditioners.
Seasonal heating efficiency (SCOP)
4.1
Market range: <4 – >5
This air conditioner has a SCOP rating of 4.1, which is higher than that of 57.6% of air conditioners and the same as that of 10.1% of air conditioners.
Show more
Inverter compressor
yes
Does this air conditioner use an inverter compressor? yes. 12.4% of air conditioners do, while 87.6% do not.
Heating function
yes
Can this air conditioner heat the room? yes. 7.3% of air conditioners can, while 92.7% cannot.
Active air purification
no
Does this air conditioner actively purify the air? no. 27% of air conditioners do not, while 73.1% do.
Dehumidification mode
yes
Does this air conditioner include dehumidification mode? yes. 6.8% of air conditioners do, while 93.2% do not.
Fan-only mode
yes
Does this air conditioner offer fan-only mode? yes. 6.2% of air conditioners do, while 93.8% do not.
Show more
Color
white
Body material
plastic
Display
yes
This air conditioner includes a display (yes); 18% of air conditioners do not, while 82% do.
Display position
front right
Physical control methods
remote control
This air conditioner provides remote control physical controls, ahead of 1.1% of air conditioners and equal to 81.5%.
Show more

Kältebringer KB35 vs the average air conditioner

246810TotalPerformanceFeaturesDesign
  • 3 more fan speeds
    This air conditioner provides more fan speed options than the average air conditioner (6 vs 3).
    6 vs 3
  • 7 dB lower outdoor sound power
    This air conditioner operates with a quieter outdoor unit than the average air conditioner (55 dB vs 62 dB).
    55 dB vs 62 dB
  • Includes an activated carbon filter
    This air conditioner includes an activated carbon filter, while the average air conditioner does not include an activated carbon filter.
  • 2 dB lower indoor sound power
    This air conditioner operates with a quieter indoor unit than the average air conditioner (54 dB vs 56 dB).
    54 dB vs 56 dB
  • 20 m² larger room coverage
    This air conditioner covers a larger room area than the average air conditioner (55 m² vs 35 m²).
    55 m² vs 35 m²
  • 0.1 points higher seasonal heating efficiency
    This air conditioner achieves a higher seasonal heating efficiency (SCOP) than the average air conditioner (4.1 vs 4).
    4.1 vs 4
  • 3.4% lighter indoor unit
    This air conditioner has a lighter indoor unit than the average air conditioner (8.4 kg vs 8.7 kg).
    8.4 kg vs 8.7 kg
  • 10x more popular
    Kältebringer KB35 is more popular than the average air conditioner (10 vs 1).
    10 vs 1
  • 10x more popular
    Kältebringer KB35 is more popular than the average air conditioner (10 vs 1).
    10 vs 1
  • 15.8% higher user score
    User score
    9.3/ 10
    ✕
    What it is
    A rating that combines user reviews with the total review volume for products in the Air Conditioners category.
    When it matters
    When you want to know how products in the Air Conditioners category perform in everyday use and how reliable owners find them over time.
    Score distribution
    ▼
    ▼
    <55-66-77-88-99-10
    Kältebringer KB35
    the average air conditioner
    Kältebringer KB35 has a higher user score than the average air conditioner (9.26 vs 8.000).
    9.26 vs 8
  • 3.6% better value for money
    Kältebringer KB35 offers better value for money than the average air conditioner (7.37 vs 7.1).
    7.37 vs 7.12
  • 7 dB lower outdoor sound power
    This air conditioner operates with a quieter outdoor unit than the average air conditioner (55 dB vs 62 dB).
    55 dB vs 62 dB
  • 2 dB lower indoor sound power
    This air conditioner operates with a quieter indoor unit than the average air conditioner (54 dB vs 56 dB).
    54 dB vs 56 dB
  • 20 m² larger room coverage
    This air conditioner covers a larger room area than the average air conditioner (55 m² vs 35 m²).
    55 m² vs 35 m²
  • 0.1 points higher seasonal heating efficiency
    This air conditioner achieves a higher seasonal heating efficiency (SCOP) than the average air conditioner (4.1 vs 4).
    4.1 vs 4
  • 0.1 points higher seasonal cooling efficiency
    This air conditioner achieves a higher seasonal cooling efficiency (SEER) than the average air conditioner (6.4 vs 6.3).
    6.4 vs 6.3
  • 3 more fan speeds
    This air conditioner provides more fan speed options than the average air conditioner (6 vs 3).
    6 vs 3
  • Includes an activated carbon filter
    This air conditioner includes an activated carbon filter, while the average air conditioner does not include an activated carbon filter.
  • 3.4% lighter indoor unit
    This air conditioner has a lighter indoor unit than the average air conditioner (8.4 kg vs 8.7 kg).
    8.4 kg vs 8.7 kg
  • 0.5 cm shallower indoor unit
    This air conditioner has a shallower indoor unit than the average air conditioner (20 cm vs 20.5 cm).
    20 cm vs 20.5 cm
  • 0.3 cm narrower indoor unit
    This air conditioner has a narrower indoor unit than the average air conditioner (80.2 cm vs 80.5 cm).
    80.2 cm vs 80.5 cm
  • Does not support an anti-mould function
    This air conditioner does not support an anti-mould function, while the average air conditioner supports an anti-mould function.
  • 0.5 cm taller indoor unit
    This air conditioner has a taller indoor-unit height than the average air conditioner (29.5 cm vs 29 cm).
    29.5 cm vs 29 cm
  • 25 m³/h lower indoor-unit airflow
    This air conditioner delivers a lower indoor airflow rate than the average air conditioner (570 m³/h vs 595 m³/h).
    570 m³/h vs 595 m³/h
  • 10% more expensive
    Kältebringer KB35 is more expensive than the average air conditioner (£550 vs £500).
    £550 vs £500
  • 10% more expensive
    Kältebringer KB35 is more expensive than the average air conditioner (£550 vs £500).
    £550 vs £500
  • 25 m³/h lower indoor-unit airflow
    This air conditioner delivers a lower indoor airflow rate than the average air conditioner (570 m³/h vs 595 m³/h).
    570 m³/h vs 595 m³/h
  • Does not support an anti-mould function
    This air conditioner does not support an anti-mould function, while the average air conditioner supports an anti-mould function.
  • 0.5 cm taller indoor unit
    This air conditioner has a taller indoor-unit height than the average air conditioner (29.5 cm vs 29 cm).
    29.5 cm vs 29 cm

Video reviews

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

Expert reviews

In-depth analysis and verdict from leading tech publications

A
akkudoktor.net
30/01/2026
Summary of the review
User Review: MSZ-RZ35VU vs Kältebringer R290 3.5kW
(Translated)Show original

Third-party reviews

Based on ratings from across the web.
Reviews last updated: August 2026 · How we calculate this

What we like about Kältebringer KB35

  • Very quiet operation (indoor unit can run as low as 19 dB in sleep mode)
  • Excellent energy efficiency with DC full inverter technology
  • Quick-Connect system allows for easier installation without needing to pull a vacuum
  • Smart home compatible with built-in WiFi (iOS/Android App, Alexa, and Google Assistant support)
  • Heats as well as cools, providing great all-season usability
  • Solid cooling and heating capacity suitable for rooms up to 55 square meters

What we don't like about Kältebringer KB35

  • The built-in WiFi only supports 2.4 GHz networks, which can complicate setup for some modern smart home routers
  • While the Quick-Connect is beginner-friendly, handling refrigerant lines still requires basic technical aptitude and care
  • Outdoor unit, while relatively standard for split ACs, may be considered bulky on the exterior of smaller apartments

Verdict

The Kältebringer KB35 is an energy-efficient split air conditioner featuring full DC inverter technology and a 12,000 BTU (3.5 kW cooling / 3.8 kW heating) capacity designed for spaces up to 55-60 m². It operates with eco-friendly R32 or R290 refrigerant, features an impressive SEER rating of up to 7.0 (energy class A++ for cooling and A+ for heating), and includes smart integration for Wi-Fi, app control, Alexa, and Google Assistant. Main pros include its versatile 4-in-1 multi-functionality (cooling, heating, dehumidification, and ventilation), an advanced multi-stage air purification system with Vitamin C and bio-filters, an ultra-quiet 19 dB indoor sleep mode, and an optional Quick-Connect system that simplifies installation. However, notable cons include the requirement for professional, certified installation to preserve the warranty under F-Gas regulations, and some user reports regarding unstable or low-quality wall mounting brackets included in the package.

Compare Kältebringer KB35 with other products in the Air Conditioners category

1Product to compare no. 1
VS
2Product to compare no. 2
VS
3Product to compare no. 3 (optional)

Graphic comparison of Kältebringer KB35 and other products in the Air Conditioners category

No results found