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Scored using Portable Air Conditioners Methodology v1.0
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H.Koenig KOL6812 Review | 44 Data compared

Avg. price:~£310Cooling capacity:12000 BTU/hMaximum room size:35 m²Maximum noise level:64 dBHeating function:noCooling Energy Efficiency Class:A

H.Koenig KOL6812 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.

7.4/10

Overall score

Score
7.4/ 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 69% of models
Score components

80%

7.4

Technical score

20%

?

User score

â–²Better than 69% of portable air conditioners
7.5

Value for money

Value for money
7.5/ 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 75% of models
Score components

70%

7.4

Overall score

30%

7.9

Price

â–²Better than 75%
7.4

Technical score

Technical score
7.4/ 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 72% of models
Score components

55%

7.5

Performance

30%

6.8

Features

15%

8.2

Design

â–²Better than 72%
?

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

  • No image
No image
Best prices
    N/A~ £310
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 H.Koenig KOL6812

Technical score
Technical score
7.4/ 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 72% of models
Score components:

55%

7.5

Performance

30%

6.8

Features

15%

8.2

Design

7.4
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:
H.Koenig KOL6812 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
7.5/ 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 75% of models
Score components:

70%

7.4

Overall score

30%

7.9

Price

7.5
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.
Show more
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

H.Koenig KOL6812 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
  • 5 m² larger room coverage
    This portable air conditioner covers a larger room area than the average portable air conditioner (35 m² vs 30 m²).
    Maximum recommended cooling area in m².
    35 m² vs 30 m²
  • 30 m³/h higher high-speed airflow
    This portable air conditioner delivers higher high-speed airflow than the average portable air conditioner (380 m³/h vs 350 m³/h).
    380 m³/h vs 350 m³/h
  • 0.1 m longer power cord
    This portable air conditioner has a longer power cord than the average portable air conditioner (1.9 m vs 1.8 m).
    1.9 m vs 1.8 m
  • 5.8% better value for money
    H.Koenig KOL6812 offers better value for money than the average portable air conditioner (7.54 vs 7.1).
    7.54 vs 7.13
  • 12.9% cheaper
    H.Koenig KOL6812 is cheaper than the average portable air conditioner (£310 vs £350).
    £310 vs £350
  • 5.8% better value for money
    H.Koenig KOL6812 offers better value for money than the average portable air conditioner (7.54 vs 7.1).
    7.54 vs 7.13
  • 12.9% cheaper
    H.Koenig KOL6812 is cheaper than the average portable air conditioner (£310 vs £350).
    £310 vs £350
  • 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
  • 5 m² larger room coverage
    This portable air conditioner covers a larger room area than the average portable air conditioner (35 m² vs 30 m²).
    Maximum recommended cooling area in m².
    35 m² vs 30 m²
  • 30 m³/h higher high-speed airflow
    This portable air conditioner delivers higher high-speed airflow than the average portable air conditioner (380 m³/h vs 350 m³/h).
    380 m³/h vs 350 m³/h
  • 0.1 m longer power cord
    This portable air conditioner has a longer power cord than the average portable air conditioner (1.9 m vs 1.8 m).
    1.9 m vs 1.8 m
  • 10.4 l/24 h lower dehumidification capacity
    This portable air conditioner offers lower moisture removal than the average portable air conditioner (22 l/24 h vs 32.4 l/24 h).
    22 l/24 h vs 32.4 l/24 h
  • No automatic fan-speed control
    This portable air conditioner does not adjust fan speed automatically, while the average portable air conditioner does.
  • 13 dB louder minimum operation
    This portable air conditioner is louder at minimum output than the average portable air conditioner (64 dB vs 51 dB).
    64 dB vs 51 dB
  • 23.5% higher weight
    This portable air conditioner is heavier than the average portable air conditioner (31.5 kg vs 25.5 kg).
    31.5 kg vs 25.5 kg
  • 5.5 cm deeper cabinet
    This portable air conditioner is deeper than the average portable air conditioner (41 cm vs 35.5 cm).
    41 cm vs 35.5 cm
  • 6 cm taller cabinet
    This portable air conditioner is taller than the average portable air conditioner (77 cm vs 71 cm).
    77 cm vs 71 cm
  • 5 cm wider cabinet
    This portable air conditioner is wider than the average portable air conditioner (43 cm vs 38 cm).
    43 cm vs 38 cm
  • 6.01x less popular
    H.Koenig KOL6812 is less popular than the average portable air conditioner (1 vs 6).
    1 vs 6.01
  • 6.01x less popular
    H.Koenig KOL6812 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.
  • 13 dB louder minimum operation
    This portable air conditioner is louder at minimum output than the average portable air conditioner (64 dB vs 51 dB).
    64 dB vs 51 dB
  • 10.4 l/24 h lower dehumidification capacity
    This portable air conditioner offers lower moisture removal than the average portable air conditioner (22 l/24 h vs 32.4 l/24 h).
    22 l/24 h vs 32.4 l/24 h
  • 23.5% higher weight
    This portable air conditioner is heavier than the average portable air conditioner (31.5 kg vs 25.5 kg).
    31.5 kg vs 25.5 kg
  • 6 cm taller cabinet
    This portable air conditioner is taller than the average portable air conditioner (77 cm vs 71 cm).
    77 cm vs 71 cm
  • 5.5 cm deeper cabinet
    This portable air conditioner is deeper than the average portable air conditioner (41 cm vs 35.5 cm).
    41 cm vs 35.5 cm
  • 5 cm wider cabinet
    This portable air conditioner is wider than the average portable air conditioner (43 cm vs 38 cm).
    43 cm vs 38 cm
  • 32.3% larger external volume
    This portable air conditioner has a larger external volume than the average portable air conditioner (135751 cm³ vs 102623.4 cm³).
    135,751 cm³ vs 102,623.407656 cm³

Third-party reviews

What we like about H.Koenig KOL6812

  • High cooling power with 12,000 BTU / 3520 Watts
  • Quickly lowers the temperature in various rooms
  • Versatile 4-in-1 functionality including cooling, ventilation, dehumidification, and sleep modes
  • Easy to use and program via the built-in LCD screen or the included remote control
  • Energy-efficient and eco-friendly operation with an Energy Class A rating
  • Features a convenient 24-hour programmable timer

What we don't like about H.Koenig KOL6812

  • Despite the advertised 'Silent+' feature, the unit runs loud and can disturb light sleepers
  • The included exhaust hose and the power cord are criticized for being significantly too short
  • The physical unit is heavy, making it difficult to move between rooms or different floors
  • Some users reported insufficient cooling performance that struggled to lower the temperature even in medium-sized spaces

Verdict

The H.Koenig KOL6812 is a monoblock portable air conditioner featuring a substantial cooling capacity of 3,520 Watts (12,000 BTU) and a maximum airflow rate of 380 m³/h, making it suitable for spaces up to 35 m². This energy class A unit offers four operations—cooling, ventilation (3 speeds), dehumidification, and an automatic-oscillating louve—alongside a 24-hour programmable timer, an LCD display, and an eco-friendly R290 refrigerant. Main pros include its energy efficiency, a dedicated "Silent+" comfort sleep mode for quieter nighttime operation, and a complete installation package containing an LCD remote control, an exhaust hose, and a window kit. However, notable cons are its fairly high maximum sound power level of 64 dB during standard heavy operation and its reliance on being placed strictly on a flat, level surface to minimize vibrating noise.

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