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COSTWAY KB-BG80101PF Review | 44 Data compared

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  • Avg. price in UK: ~£230
  • Avg. price in US: ~$300
  • Cooling capacity: 8,000 BTU/h
  • Maximum room size: 28 m²
  • Maximum noise level: 60 dB
  • Heating function: yes
  • Cooling Energy Efficiency Class: ?

COSTWAY KB-BG80101PF 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.

6.9

Overall score

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 components:

80.0%

6.5

Technical Score

20.0%

8.3

User score

Good
6.5

Technical Score

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 components:

55.0%

5.2

Performance

30.0%

7.5

Features

15.0%

9.5

Design

Good
8.3

User score

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 components:

70.0%

8.0

User reviews

30.0%

9.2

Popularity

User score:
United Kingdom
amazon
4.2
(20)
United States
Amazon_logo.png
4.0
(407)
Amazon_logo.png
3.8
(78)

(Reviews last updated: August 2026)

Excellent
  • 9.5
    Bedroom use

    Score components:

    35.0%

    8.5

    Maximum noise level

    25.0%

    10

    Night mode

    20.0%

    10

    Timer

    20.0%

    10

    Remote control

  • 3.7
    Large rooms

    Score components:

    40.0%

    2.8

    Cooling capacity

    30.0%

    4.8

    Maximum room size

    20.0%

    2.3

    Airflow (high speed)

    10.0%

    7.0

    Airflow direction control

  • 6.9
    Year-round use

    Score components:

    40.0%

    10

    Heating function

    30.0%

    1.6

    Dehumidification capacity

    20.0%

    ?

    Cooling energy efficiency class

    10.0%

    ?

    Automatic fan speed

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Best prices in UK

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The COSTWAY KB-BG80101PF is an 8,000 BTU 3-in-1 portable air conditioner engineered to cool, dehumidify, and fan individual spaces up to 230 square feet. It operates on a standard 110V-120V/60Hz power supply with a power consumption of approximately 920 watts, an airflow rate of 300 m³/h, and a moisture-removal capacity of 40 pints per day. Core functional advantages include dual control flexibility via an intuitive LED touch panel and a remote control, a 1-to-24-hour programmable timer, an automatic sleep mode that reduces noise while gradually adjusting temperature, and built-in rolling casters and handles for enhanced mobility. On the downside, the unit produces a noticeable maximum operating noise level of up to 56–60 decibels, its standard single-hose window installation kit can sometimes require extra insulation tape for an airtight seal, and manual drainage may be periodically required from the lower plug in highly humid environments.

Technical Specifications of portable air conditioner COSTWAY KB-BG80101PF

Technical Score

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 components:

55.0%

5.2

Performance

30.0%

7.5

Features

15.0%

9.5

Design

6.5
COSTWAY KB-BG80101PF has a technical score of 6.53 points, which is lower than 55.3% of products in this category.
User score

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 components:

70.0%

8.0

User reviews

30.0%

9.2

Popularity

User score:
United Kingdom
amazon
4.2
(20)
United States
Amazon_logo.png
4.0
(407)
Amazon_logo.png
3.8
(78)

(Reviews last updated: August 2026)

8.3
COSTWAY KB-BG80101PF has a user score of 8.32 points, which is higher than 81.6% of products in this category.
Popularity
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.
9.2
COSTWAY KB-BG80101PF has a popularity of 9.2 points, which is higher than 86.3% of products in this category.
Ratio quality/price

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 components:

60.0%

6.9

Overall score

40.0%

8.7

Price

7.4
COSTWAY KB-BG80101PF has a quality-to-price ratio of 7.4 points, which is higher than 79.5% of products in this category.
Cooling capacity
What it is: Cooling capacity is the amount of heat the air conditioner can remove per hour, measured in BTU/h.
When it matters: Higher capacity cools larger or warmer rooms more effectively, provided the unit is sized correctly.

Importance: HIGH

Good value: At least 12,000 BTU/h

8,000 BTU/h
COSTWAY KB-BG80101PF delivers 8000 BTU/h cooling capacity, which is lower than that of 76.1% of portable air conditioners and equal to that of 5.3% of portable air conditioners.
Rated input power
What it is: Rated input power is the electrical power the unit draws at its specified operating point, measured in watts.
When it matters: Lower rated input power reduces electrical demand, though cooling efficiency also depends on delivered capacity.

Importance: HIGH

Good value: Up to 1,200 W

920 W
COSTWAY KB-BG80101PF draws 920 W, which is lower than the power draw of 73.2% of portable air conditioners.
Cooling-mode power draw.
Cooling Energy Efficiency Class
What it is: Cooling energy efficiency class summarizes the efficiency of the unit while cooling, from higher to lower letter grades.
When it matters: A higher cooling efficiency class indicates more cooling output for the electricity consumed.

Importance: HIGH

Good value: A or better

?
Heating energy efficiency class
What it is: Heating energy efficiency class summarizes energy efficiency when the unit operates in heating mode.
When it matters: A higher heating efficiency class matters when the portable air conditioner will also provide regular space heating.

Importance: LOW

Good value: A or better

?
Number of speeds
What it is: The number of selectable fan speeds determines how finely airflow and noise can be adjusted.
When it matters: More speed settings make it easier to balance cooling intensity, sound, and comfort.

Importance: MEDIUM

Good value: At least 3 speeds

3
COSTWAY KB-BG80101PF 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
What it is: Fan-only mode circulates room air without running the refrigeration cycle.
When it matters: This mode provides lower-power airflow when cooling is unnecessary.

Importance: MEDIUM

Good value: yes

yes
COSTWAY KB-BG80101PF includes a fan-only mode. 99.5% of portable air conditioners support this mode.
Airflow direction control
What it is: Airflow direction control describes whether outlet air can be aimed automatically, manually, or not at all.
When it matters: Better directional control spreads conditioned air more evenly without repositioning the unit.

Importance: MEDIUM

Good value: automatic

manual
COSTWAY KB-BG80101PF provides manual airflow direction control, which ranks lower than 53.2% of portable air conditioners and equal to 19.4% of portable air conditioners.
Night mode
What it is: Night mode adjusts operation for sleeping hours, typically reducing sound, light, or abrupt temperature changes.
When it matters: Night mode is useful when the unit runs in a bedroom or other light- and noise-sensitive space.

Importance: MEDIUM

Good value: yes

yes
COSTWAY KB-BG80101PF includes a dedicated night mode. 74.3% of portable air conditioners offer night mode.
Timer
What it is: A timer lets the unit start, stop, or change operation after a scheduled interval.
When it matters: Timer control helps cool a room before use and avoids running the unit longer than necessary.

Importance: MEDIUM

Good value: yes

yes
COSTWAY KB-BG80101PF includes a built-in timer. 99.5% of portable air conditioners feature a timer.
Maximum timer duration
What it is: Maximum timer duration is the longest interval that can be scheduled before automatic operation changes.
When it matters: A longer timer window offers more flexibility for overnight use and advance scheduling.

Importance: MEDIUM

Good value: At least 24 hours

24 hours
COSTWAY KB-BG80101PF 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
What it is: Color describes the main exterior finish of the portable air conditioner.
When it matters: Finish color matters when the unit will remain visible and should suit the room decor.

Importance: LOW

white, black
Display
What it is: A display shows settings such as target temperature, operating mode, or timer status on the unit.
When it matters: A display makes current settings easier to check without opening an app or using the remote.

Importance: LOW

Good value: yes

yes
COSTWAY KB-BG80101PF includes an integrated display. 99.5% of portable air conditioners feature a display.
Control type
What it is: Control type identifies whether settings are entered through touch controls, physical buttons, or both.
When it matters: The interface style affects tactile feedback, cleaning, accessibility, and ease of use.

Importance: LOW

physical
Remote control
What it is: A remote control operates core functions from across the room without touching the unit.
When it matters: Remote access is convenient when the air conditioner is beside a window, across the room, or used from bed.

Importance: LOW

Good value: yes

yes
COSTWAY KB-BG80101PF comes with a remote control. 99% of portable air conditioners include a remote.
Handles
What it is: Integrated handles provide secure grip points for moving or repositioning the unit.
When it matters: Handles reduce awkward lifting when the air conditioner is moved between rooms or stored.

Importance: LOW

Good value: yes

yes
COSTWAY KB-BG80101PF includes built-in handles for easier carrying. 99.5% of portable air conditioners feature handles.
Show more

COSTWAY KB-BG80101PF vs the average portable air conditioner

  • Supports Wi-Fi
    COSTWAY KB-BG80101PF supports Wi-Fi, the average portable air conditioner does not.
    What it is: Wi-Fi connectivity lets the air conditioner communicate with a phone app or connected-home service.
    When it matters: Wi-Fi enables remote adjustments, schedules, and status checks beyond infrared remote range.

    Importance: HIGH

    Good value: yes

    COSTWAY KB-BG80101PF supports Wi-Fi, the average portable air conditioner does not.
  • 4 dB quieter at maximum output
    COSTWAY KB-BG80101PF is quieter at maximum output than the average portable air conditioner (60 dB vs 64 dB).
    What it is: Maximum noise level is the loudest stated sound output, usually produced at full cooling or fan speed.
    When it matters: Lower maximum noise makes intensive cooling less disruptive during work, conversation, or sleep.

    Importance: MEDIUM

    Good value: Up to 60 dB

    COSTWAY KB-BG80101PF is quieter at maximum output than the average portable air conditioner (60 dB vs 64 dB).60 dB vs 64 dB
  • Provides heating
    COSTWAY KB-BG80101PF provides heating, the average portable air conditioner does not.
    What it is: A heating function reverses or supplements normal operation to warm the room.
    When it matters: Heating extends seasonal usefulness and can replace a separate spot heater in mild weather.

    Importance: LOW

    Good value: yes

    COSTWAY KB-BG80101PF provides heating, the average portable air conditioner does not.
  • 21.6% lower weight
    COSTWAY KB-BG80101PF is lighter than the average portable air conditioner (20 kg vs 25.5 kg).
    What it is: Weight is the mass of the portable air conditioner before installation accessories are attached.
    When it matters: A lighter unit is easier to carry, reposition, and move between floors.

    Importance: MEDIUM

    Good value: Up to 25 kg

    COSTWAY KB-BG80101PF is lighter than the average portable air conditioner (20 kg vs 25.5 kg).20 kg vs 25.5 kg
  • 80 W lower rated power draw
    COSTWAY KB-BG80101PF draws less power than the average portable air conditioner (920 W vs 1000 W).
    Cooling-mode power draw.
    What it is: Rated input power is the electrical power the unit draws at its specified operating point, measured in watts.
    When it matters: Lower rated input power reduces electrical demand, though cooling efficiency also depends on delivered capacity.

    Importance: HIGH

    Good value: Up to 1,200 W

    COSTWAY KB-BG80101PF draws less power than the average portable air conditioner (920 W vs 1000 W).920 W vs 1000 W
  • 8 cm narrower cabinet
    COSTWAY KB-BG80101PF is narrower than the average portable air conditioner (30 cm vs 38 cm).
    What it is: Width is the side-to-side cabinet dimension of the portable air conditioner.
    When it matters: A narrower unit occupies less wall and floor space beside a window.

    Importance: LOW

    Good value: Up to 35 cm

    COSTWAY KB-BG80101PF is narrower than the average portable air conditioner (30 cm vs 38 cm).30 cm vs 38 cm
  • 4.5 cm shallower cabinet
    COSTWAY KB-BG80101PF is shallower than the average portable air conditioner (31 cm vs 35.5 cm).
    What it is: Depth is the front-to-back cabinet dimension of the portable air conditioner.
    When it matters: A shallower unit protrudes less into the room and leaves more usable floor space.

    Importance: LOW

    Good value: Up to 35 cm

    COSTWAY KB-BG80101PF is shallower than the average portable air conditioner (31 cm vs 35.5 cm).31 cm vs 35.5 cm
  • 0.05 m longer power cord
    COSTWAY KB-BG80101PF has a longer power cord than the average portable air conditioner (1.9 m vs 1.8 m).
    What it is: Power cord length is the distance the unit can reach from a wall outlet without an extension lead.
    When it matters: A longer cord makes safe placement easier when suitable outlets are limited.

    Importance: LOW

    Good value: At least 1.8 m

    COSTWAY KB-BG80101PF has a longer power cord than the average portable air conditioner (1.9 m vs 1.8 m).1.85 m vs 1.8 m
  • 4 dB quieter at maximum output
    COSTWAY KB-BG80101PF is quieter at maximum output than the average portable air conditioner (60 dB vs 64 dB).
  • 80 W lower rated power draw
    COSTWAY KB-BG80101PF draws less power than the average portable air conditioner (920 W vs 1000 W).
  • Supports Wi-Fi
    COSTWAY KB-BG80101PF supports Wi-Fi, the average portable air conditioner does not.
  • Provides heating
    COSTWAY KB-BG80101PF provides heating, the average portable air conditioner does not.
  • 21.6% lower weight
    COSTWAY KB-BG80101PF is lighter than the average portable air conditioner (20 kg vs 25.5 kg).
  • 8 cm narrower cabinet
    COSTWAY KB-BG80101PF is narrower than the average portable air conditioner (30 cm vs 38 cm).
  • 4.5 cm shallower cabinet
    COSTWAY KB-BG80101PF is shallower than the average portable air conditioner (31 cm vs 35.5 cm).
  • 0.05 m longer power cord
    COSTWAY KB-BG80101PF has a longer power cord than the average portable air conditioner (1.9 m vs 1.8 m).
  • 1 cm shorter cabinet
    COSTWAY KB-BG80101PF is shorter than the average portable air conditioner (70 cm vs 71 cm).

Total
Overall
Performance
Features
Design
  • 50 m³/h lower high-speed airflow
    COSTWAY KB-BG80101PF delivers lower high-speed airflow than the average portable air conditioner (300 m³/h vs 350 m³/h).
  • 1000 BTU/h lower cooling capacity
    COSTWAY KB-BG80101PF delivers lower cooling capacity than the average portable air conditioner (8000 BTU/h vs 9000 BTU/h).
  • 5 dB louder minimum operation
    COSTWAY KB-BG80101PF is louder at minimum output than the average portable air conditioner (56 dB vs 51 dB).
  • 2 m² smaller room coverage
    COSTWAY KB-BG80101PF covers a smaller room area than the average portable air conditioner (28 m² vs 30 m²).
    Maximum recommended cooling area in m².
  • 13.5 l/24 h lower dehumidification capacity
    COSTWAY KB-BG80101PF offers lower moisture removal than the average portable air conditioner (18.9 l/24 h vs 32.4 l/24 h).
  • More limited airflow control
    COSTWAY KB-BG80101PF provides manual airflow direction control, while the average portable air conditioner offers automatic.
  • No wheels
    COSTWAY KB-BG80101PF does not include wheels, while the average portable air conditioner does.
  • 36.6% larger external volume
    COSTWAY KB-BG80101PF has a larger external volume than the average portable air conditioner (65100 cm³ vs 102623.407656 cm³).
  • 13.5 l/24 h lower dehumidification capacity
    COSTWAY KB-BG80101PF offers lower moisture removal than the average portable air conditioner (18.9 l/24 h vs 32.4 l/24 h).
    What it is: Dehumidification capacity is the maximum volume of moisture the unit can remove from the air in 24 hours.
    When it matters: Higher capacity is more effective in large, persistently humid, or moisture-prone rooms.

    Importance: HIGH

    Good value: At least 24 l/24 h

    COSTWAY KB-BG80101PF offers lower moisture removal than the average portable air conditioner (18.9 l/24 h vs 32.4 l/24 h).18.9 l/24 h vs 32.4 l/24 h
  • More limited airflow control
    COSTWAY KB-BG80101PF provides manual airflow direction control, while the average portable air conditioner offers automatic.
    What it is: Airflow direction control describes whether outlet air can be aimed automatically, manually, or not at all.
    When it matters: Better directional control spreads conditioned air more evenly without repositioning the unit.

    Importance: MEDIUM

    Good value: automatic

    COSTWAY KB-BG80101PF provides manual airflow direction control, while the average portable air conditioner offers automatic.manual vs automatic
  • 50 m³/h lower high-speed airflow
    COSTWAY KB-BG80101PF delivers lower high-speed airflow than the average portable air conditioner (300 m³/h vs 350 m³/h).
    What it is: High-speed airflow is the maximum volume of air the fan can move per hour.
    When it matters: Higher maximum airflow circulates cooled air through the room more quickly.

    Importance: HIGH

    Good value: At least 350 m³/h

    COSTWAY KB-BG80101PF delivers lower high-speed airflow than the average portable air conditioner (300 m³/h vs 350 m³/h).300 m³/h vs 350 m³/h
  • 1000 BTU/h lower cooling capacity
    COSTWAY KB-BG80101PF delivers lower cooling capacity than the average portable air conditioner (8000 BTU/h vs 9000 BTU/h).
    What it is: Cooling capacity is the amount of heat the air conditioner can remove per hour, measured in BTU/h.
    When it matters: Higher capacity cools larger or warmer rooms more effectively, provided the unit is sized correctly.

    Importance: HIGH

    Good value: At least 12,000 BTU/h

    COSTWAY KB-BG80101PF delivers lower cooling capacity than the average portable air conditioner (8000 BTU/h vs 9000 BTU/h).8000 BTU/h vs 9000 BTU/h
  • 5 dB louder minimum operation
    COSTWAY KB-BG80101PF is louder at minimum output than the average portable air conditioner (56 dB vs 51 dB).
    What it is: Minimum noise level is the quietest stated sound output, normally reached at a reduced fan setting.
    When it matters: Lower minimum noise is valuable in bedrooms, home offices, and other quiet spaces.

    Importance: MEDIUM

    Good value: Up to 50 dB

    COSTWAY KB-BG80101PF is louder at minimum output than the average portable air conditioner (56 dB vs 51 dB).56 dB vs 51 dB
  • No wheels
    COSTWAY KB-BG80101PF does not include wheels, while the average portable air conditioner does.
    What it is: Wheels allow the air conditioner to roll across the floor rather than being lifted.
    When it matters: Casters make a heavy portable unit easier to reposition and move between nearby rooms.

    Importance: LOW

    Good value: yes

    COSTWAY KB-BG80101PF does not include wheels, while the average portable air conditioner does.
  • 2 m² smaller room coverage
    COSTWAY KB-BG80101PF covers a smaller room area than the average portable air conditioner (28 m² vs 30 m²).
    Maximum recommended cooling area in m².
    What it is: Maximum room size is the largest floor area the manufacturer recommends the unit should cool.
    When it matters: A larger rated area is important when cooling open-plan spaces or larger rooms.

    Importance: HIGH

    Good value: At least 30 m²

    COSTWAY KB-BG80101PF covers a smaller room area than the average portable air conditioner (28 m² vs 30 m²).28 m² vs 30 m²
  • 36.6% larger external volume
    COSTWAY KB-BG80101PF has a larger external volume than the average portable air conditioner (65100 cm³ vs 102623.407656 cm³).
    What it is: The exterior physical volume (bulk footprint) occupied by the portable air conditioner chassis, calculated from its height, width, and depth.
    When it matters: Crucial for assessing room floor intrusion and determining whether the appliance can be stored away easily in closets or under stairs off-season.

    Importance: LOW

    COSTWAY KB-BG80101PF has a larger external volume than the average portable air conditioner (65100 cm³ vs 102623.407656 cm³).65100 cm³ vs 102623.407656 cm³
Total
Performance
Features
Design

Graphic comparison of COSTWAY KB-BG80101PF and other products in the Portable Air Conditioners category

Attribute category
Attribute
No results found

Third-party reviews

United Kingdom
amazon
4.2
20 Reviews
United States
Amazon_logo.png
4.0
407 Reviews
Amazon_logo.png
3.8
78 Reviews

(Reviews last updated: August 2026)

What customers like about COSTWAY KB-BG80101PF?

  • Cools down small to medium-sized rooms relatively quickly
  • Multi-functional unit with integrated cooling, fan, and dehumidifier settings
  • Equipped with built-in handles and smooth-rolling casters for easy movement on hard floors
  • User-friendly digital touch control panel and convenient remote control operation
  • Features a practical sleep mode that dims display lights and lowers fan noise for nighttime use
  • Self-evaporating system reduces the overall frequency of manual water draining

What customers dislike about COSTWAY KB-BG80101PF?

  • Noticeable and loud noise level during standard operation, especially on high fan speeds
  • The included window slider kit feels flimsy and often requires additional tape or adjustments for a tight seal
  • Struggles to effectively cool large, open layouts or rooms with significant direct sunlight exposure
  • Lacks advanced features such as smart home integration or dedicated smartphone app control
  • The unit is heavy, making it difficult to carry upstairs or navigate across thick carpeting
  • Frequent manual draining may still be necessary when operated in highly humid environments

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