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Signature S40014 Review | 44 Data compared

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  • Avg. price in UK: ~£170
  • Avg. price in US: ~$220
  • Cooling capacity: 7,000 BTU/h
  • Maximum room size: 15 m²
  • Maximum noise level: 65 dB
  • Heating function: no
  • Cooling Energy Efficiency Class: A

Signature S40014 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.

5.3

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%

4.8

Technical Score

20.0%

7.7

User score

Good
4.8

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%

2.6

Performance

30.0%

6.5

Features

15.0%

9.2

Design

Poor
7.7

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%

7.0

Popularity

User score:
United Kingdom
amazon
4.0
(94)

(Reviews last updated: August 2026)

Very good
  • 6.9
    Bedroom use

    Score components:

    35.0%

    1.0

    Maximum noise level

    25.0%

    10

    Night mode

    20.0%

    10

    Timer

    20.0%

    10

    Remote control

  • 3.0
    Large rooms

    Score components:

    40.0%

    1.0

    Cooling capacity

    30.0%

    1.0

    Maximum room size

    20.0%

    ?

    Airflow (high speed)

    10.0%

    7.0

    Airflow direction control

  • 6.6
    Year-round use

    Score components:

    40.0%

    4.0

    Heating function

    30.0%

    ?

    Dehumidification capacity

    20.0%

    8.0

    Cooling energy efficiency class

    10.0%

    10

    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 Signature S40014 is a 3-in-1 portable air conditioner featuring a 7,000 BTU cooling capacity, an integrated dehumidifier, and a 2-speed fan designed to regulate spaces up to 15 square meters. Operating on 240V with eco-friendly R290 refrigerant, the unit offers precise climate management between 18–32°C through digital touch panels or an included remote control. Key advantages include a self-evaporating cooling system, a built-in 12-hour programmable timer, an energy-saving sleep mode, and an included 1.5-meter window venting kit for seamless installation. However, its downsides involve a relatively loud operating sound level reaching 61–70 decibels and a high power demand of up to 3,000 watts during high-intensity usage.

Technical Specifications of portable air conditioner Signature S40014

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%

2.6

Performance

30.0%

6.5

Features

15.0%

9.2

Design

4.8
Signature S40014 has a technical score of 4.76 points, which is lower than 100% 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%

7.0

Popularity

User score:
United Kingdom
amazon
4.0
(94)

(Reviews last updated: August 2026)

7.7
Signature S40014 has a user score of 7.7 points, which is lower than 75.3% 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.
7.0
Signature S40014 has a popularity of 7 points, which is higher than 58.4% 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%

5.3

Overall score

40.0%

9.3

Price

6.5
Signature S40014 has a quality-to-price ratio of 6.5 points, which is lower than 81.6% 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

7,000 BTU/h
Signature S40014 delivers 7000 BTU/h cooling capacity, which is lower than that of 82.5% of portable air conditioners and equal to that of 13.3% 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

?
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

A
Signature S40014 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
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

2
Signature S40014 offers 2 fan speeds, which is fewer than 63.7% of portable air conditioners and equal to 36.3% of portable air conditioners.
Manual discrete fan-speed levels counted; automatic and continuous modes were excluded.
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
Signature S40014 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
Signature S40014 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
Signature S40014 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
Signature S40014 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

12 hours
Signature S40014 supports a timer of up to 12 hours, which is shorter than that of 93.1% of portable air conditioners and equal to that of 5.3% 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
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
Signature S40014 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
Signature S40014 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
Signature S40014 includes built-in handles for easier carrying. 99.5% of portable air conditioners feature handles.
Show more

Signature S40014 vs the average portable air conditioner

  • 5 cm shallower cabinet
    Signature S40014 is shallower than the average portable air conditioner (30.5 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

    Signature S40014 is shallower than the average portable air conditioner (30.5 cm vs 35.5 cm).30.5 cm vs 35.5 cm
  • 0.2 m longer power cord
    Signature S40014 has a longer power cord than the average portable air conditioner (2 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

    Signature S40014 has a longer power cord than the average portable air conditioner (2 m vs 1.8 m).2 m vs 1.8 m
  • 2.06x cheaper
    Signature S40014 is cheaper than the average portable air conditioner (£170 vs £350).
    Signature S40014 is cheaper than the average portable air conditioner (£170 vs £350).£170 vs £350
  • 0.9% lower weight
    Signature S40014 is lighter than the average portable air conditioner (25.3 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

    Signature S40014 is lighter than the average portable air conditioner (25.3 kg vs 25.5 kg).25.26 kg vs 25.5 kg
  • 16.3% more popular
    Signature S40014 is more popular than the average portable air conditioner (6.99 vs 6.005).
    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.
    Signature S40014 is more popular than the average portable air conditioner (6.99 vs 6.005).6.99 vs 6.01
  • 0.2 m longer power cord
    Signature S40014 has a longer power cord than the average portable air conditioner (2 m vs 1.8 m).
  • 5 cm shallower cabinet
    Signature S40014 is shallower than the average portable air conditioner (30.5 cm vs 35.5 cm).
  • 0.9% lower weight
    Signature S40014 is lighter than the average portable air conditioner (25.3 kg vs 25.5 kg).

Total
Overall
Design
  • 2000 BTU/h lower cooling capacity
    Signature S40014 delivers lower cooling capacity than the average portable air conditioner (7000 BTU/h vs 9000 BTU/h).
  • 2 °C higher minimum temperature
    Signature S40014 has a higher minimum temperature setting than the average portable air conditioner (18 °C vs 16 °C).
  • 1 fewer fan speeds
    Signature S40014 offers fewer fan speeds than the average portable air conditioner (2 vs 3).
    Manual discrete fan-speed levels counted; automatic and continuous modes were excluded.
  • 15 m² smaller room coverage
    Signature S40014 covers a smaller room area than the average portable air conditioner (15 m² vs 30 m²).
    Maximum recommended cooling area in m².
  • 14 dB louder minimum operation
    Signature S40014 is louder at minimum output than the average portable air conditioner (65 dB vs 51 dB).
  • 1 dB louder at maximum output
    Signature S40014 is louder at maximum output than the average portable air conditioner (65 dB vs 64 dB).
    Highest stated operating noise.
  • More limited airflow control
    Signature S40014 provides manual airflow direction control, while the average portable air conditioner offers automatic.
  • 12 hours shorter maximum timer
    Signature S40014 supports a shorter timer duration than the average portable air conditioner (12 hours vs 24 hours).
  • 4.2 cm taller cabinet
    Signature S40014 is taller than the average portable air conditioner (75.2 cm vs 71 cm).
  • 14.4% larger external volume
    Signature S40014 has a larger external volume than the average portable air conditioner (87844.9 cm³ vs 102623.407656 cm³).
  • 0.3 cm wider cabinet
    Signature S40014 is wider than the average portable air conditioner (38.3 cm vs 38 cm).
  • 2000 BTU/h lower cooling capacity
    Signature S40014 delivers lower cooling capacity than the average portable air conditioner (7000 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

    Signature S40014 delivers lower cooling capacity than the average portable air conditioner (7000 BTU/h vs 9000 BTU/h).7000 BTU/h vs 9000 BTU/h
  • 2 °C higher minimum temperature
    Signature S40014 has a higher minimum temperature setting than the average portable air conditioner (18 °C vs 16 °C).
    What it is: Minimum set temperature is the lowest thermostat target the unit allows.
    When it matters: A lower minimum setting gives more headroom for intensive cooling in very warm conditions.

    Importance: MEDIUM

    Good value: Up to 16 °C

    Signature S40014 has a higher minimum temperature setting than the average portable air conditioner (18 °C vs 16 °C).18 °C vs 16 °C
  • 1 fewer fan speeds
    Signature S40014 offers fewer fan speeds than the average portable air conditioner (2 vs 3).
    Manual discrete fan-speed levels counted; automatic and continuous modes were excluded.
    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

    Signature S40014 offers fewer fan speeds than the average portable air conditioner (2 vs 3).2 vs 3
  • 15 m² smaller room coverage
    Signature S40014 covers a smaller room area than the average portable air conditioner (15 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

    Signature S40014 covers a smaller room area than the average portable air conditioner (15 m² vs 30 m²).15 m² vs 30 m²
  • More limited airflow control
    Signature S40014 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

    Signature S40014 provides manual airflow direction control, while the average portable air conditioner offers automatic.manual vs automatic
  • 14 dB louder minimum operation
    Signature S40014 is louder at minimum output than the average portable air conditioner (65 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

    Signature S40014 is louder at minimum output than the average portable air conditioner (65 dB vs 51 dB).65 dB vs 51 dB
  • 12 hours shorter maximum timer
    Signature S40014 supports a shorter timer duration than the average portable air conditioner (12 hours vs 24 hours).
    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

    Signature S40014 supports a shorter timer duration than the average portable air conditioner (12 hours vs 24 hours).12 hours vs 24 hours
  • 1 dB louder at maximum output
    Signature S40014 is louder at maximum output than the average portable air conditioner (65 dB vs 64 dB).
    Highest stated operating noise.
    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

    Signature S40014 is louder at maximum output than the average portable air conditioner (65 dB vs 64 dB).65 dB vs 64 dB
Total
Overall
Performance
Features
Design

Graphic comparison of Signature S40014 and other products in the Portable Air Conditioners category

Attribute category
Attribute
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Third-party reviews

United Kingdom
amazon
4.0
94 Reviews

(Reviews last updated: August 2026)

What customers like about Signature S40014?

  • Efficient cooling performance in small spaces up to 15 square meters
  • Versatile 3-in-1 design combining an air conditioner, dehumidifier, and 2-speed fan
  • Includes a convenient 12-hour programmable timer and a wireless remote control
  • Features a self-evaporating cooling system that reduces the need to manually drain water
  • Highly mobile and easy to reposition due to built-in glide castors and a compact footprint

What customers dislike about Signature S40014?

  • Noticeable operating noise level typical of portable monoblock compressors
  • Limited effectiveness when trying to cool larger or open-plan rooms over 15 square meters
  • Requires a fixed window venting configuration to exhaust hot air out of the room
  • Short 1.5-meter exhaust hose restricts how far the unit can be placed from a window

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