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Whirlpool SPIW 312 L Review | 46 Data compared

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  • Avg. price in UK: ~£380
  • Avg. price in US: ~$390
  • Cooling capacity: 3.4 kW
  • Seasonal cooling efficiency (SEER): 6.1
  • Maximum indoor-unit sound power level: 56 dB

Whirlpool SPIW 312 L 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.

7.2

Overall score

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 components:

80.0%

6.8

Technical Score

20.0%

8.9

User score

Very good
6.8

Technical Score

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 components:

40.0%

3.9

Performance

40.0%

8.4

Features

20.0%

9.1

Design

Good
8.9

User score

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 components:

70.0%

9.2

User reviews

30.0%

8.1

Popularity

User score:
United Kingdom
amazon
4.6
(51)

(Reviews last updated: August 2026)

Excellent
  • 8.8
    Compactness

    Score components:

    30.0%

    8.0

    Indoor unit width

    30.0%

    8.2

    Indoor unit depth

    20.0%

    9.9

    Indoor unit height

    20.0%

    10

    Indoor unit weight

  • 8.3
    Bedroom comfort

    Score components:

    40.0%

    ?

    Night mode

    25.0%

    ?

    Timer

    20.0%

    ?

    Maximum timer duration

    15.0%

    10

    Automatic mode

  • whirlpool-spiw-312-l
  • whirlpool-spiw-312-l
  • whirlpool-spiw-312-l
whirlpool-spiw-312-l
whirlpool-spiw-312-l
whirlpool-spiw-312-l

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 Whirlpool SPIW 312 L is a reversible wall-mounted split air conditioner with inverter technology, a heat pump, 12,000 BTU of cooling capacity, and R32 refrigerant. It is rated A++ for cooling with a SEER of 6.1 and A+ for heating with a SCOP of 4.0. Its main strengths include 6th Sense control, which automatically adjusts temperature and humidity, a Jet mode that can lower the temperature by 5°C in 10 minutes, a quiet mode rated as low as 19 dB(A), and an activated-carbon filter. The main limitation is that Wi-Fi control is not built in as standard and may require an optional adapter.

Technical Specifications of air conditioner Whirlpool SPIW 312 L

Technical Score

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 components:

40.0%

3.9

Performance

40.0%

8.4

Features

20.0%

9.1

Design

6.8
Whirlpool SPIW 312 L has a technical score of 6.76 points, which is lower than 87.1% 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 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 components:

70.0%

9.2

User reviews

30.0%

8.1

Popularity

User score:
United Kingdom
amazon
4.6
(51)

(Reviews last updated: August 2026)

8.9
Whirlpool SPIW 312 L has a user score of 8.87 points, which is higher than 84.3% of products in this category.
Popularity
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.
8.1
Whirlpool SPIW 312 L has a popularity of 8.1 points, which is higher than 78.7% of products in this category.
Ratio quality/price

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 components:

60.0%

7.2

Overall score

40.0%

7.2

Price

7.2
Whirlpool SPIW 312 L has a quality-to-price ratio of 7.2 points, which is higher than 57.3% of products in this category.
Split configuration
What it is: Split configuration states how many indoor units are paired with the air-conditioning system, such as mono, dual, triple, quad, or penta split.
When it matters: It matters when you are planning climate control for one room or several rooms from a shared outdoor unit.

Importance: LOW

mono split
Cooling capacity
What it is: Cooling capacity is the rate at which the air conditioner can remove heat from a room, expressed in kilowatts.
When it matters: Adequate capacity is essential for cooling the intended room size without excessive run time or poor temperature control.

Importance: HIGH

Good value: At least 3.5 kW

3.4 kW
Whirlpool SPIW 312 L delivers a cooling capacity of 3.4 kW, which is lower than that of 54.7% of air conditioners and the same as that of 10% of air conditioners.
Indoor-unit capacity configuration
What it is: Indoor-unit capacity configuration shows how the system’s BTU/h capacity is distributed across its indoor units.
When it matters: It matters when sizing a multi-split system for rooms with different cooling loads.

Importance: LOW

12,000 BTU/h
Seasonal cooling efficiency (SEER)
What it is: SEER expresses the air conditioner’s average cooling efficiency over a typical season.
When it matters: A higher SEER generally means less electricity is needed to deliver the same seasonal cooling.

Importance: HIGH

Good value: At least 6.1

6.1
Whirlpool SPIW 312 L has a SEER rating of 6.1, which is lower than that of 62.2% of air conditioners and the same as that of 34% of air conditioners.
Seasonal heating efficiency (SCOP)
What it is: SCOP expresses the air conditioner’s average heating efficiency over a typical season.
When it matters: A higher SCOP generally means less electricity is needed to provide the same seasonal heating.

Importance: HIGH

Good value: At least 4.0

4
Whirlpool SPIW 312 L has a SCOP rating of 4, which is higher than that of 4.4% of air conditioners and the same as that of 49.4% of air conditioners.
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Inverter compressor
What it is: An inverter compressor can vary its operating speed instead of relying only on full-power on and off cycles.
When it matters: Variable compressor output can improve temperature stability, efficiency, and part-load noise.

Importance: HIGH

Good value: yes

yes
Does Whirlpool SPIW 312 L use an inverter compressor? yes. 12.4% of air conditioners do, while 87.6% do not.
Heating function
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: MEDIUM

Good value: yes

yes
Can Whirlpool SPIW 312 L heat the room? yes. 7.3% of air conditioners can, while 92.7% cannot.
Active air purification
What it is: Active air purification uses a dedicated treatment function beyond ordinary passive filtration to improve indoor air quality.
When it matters: It is useful when reducing fine particles, allergens, odors, or other airborne contaminants is a priority.

Importance: LOW

Good value: yes

no
Does Whirlpool SPIW 312 L actively purify the air? no. 27% of air conditioners do not, while 73.1% do.
Dehumidification mode
What it is: Dehumidification mode removes moisture from room air with reduced emphasis on cooling.
When it matters: This mode improves comfort in humid weather and can help control indoor dampness.

Importance: MEDIUM

Good value: yes

yes
Does Whirlpool SPIW 312 L include dehumidification mode? yes. 6.8% of air conditioners do, while 93.2% do not.
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
Does Whirlpool SPIW 312 L offer fan-only mode? yes. 6.2% of air conditioners do, while 93.8% do not.
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Color
What it is: Color identifies the main exterior finish of the indoor unit.
When it matters: Color matters when the indoor unit remains visible and should suit the room decor.

Importance: LOW

white
Body material
What it is: Body material identifies the primary exterior housing material of the indoor unit.
When it matters: Housing material affects appearance, rigidity, cleaning, and resistance to everyday wear.

Importance: LOW

plastic
Display
What it is: A display shows temperature, operating mode, timer, or status information on the indoor unit.
When it matters: A built-in display makes current settings easier to check without opening an app or using the remote.

Importance: LOW

Good value: yes

yes
Whirlpool SPIW 312 L includes a display (yes); 18% of air conditioners do not, while 82% do.
Display position
What it is: Display position identifies where the integrated display sits on the indoor or main unit.
When it matters: A well-placed display is easier to read from the usual viewing angle without obstructing the room layout.

Importance: LOW

front center
Physical control methods
What it is: Physical control methods identify the supplied remote and user-facing controls on the unit.
When it matters: Physical controls matter when you want to operate the air conditioner without relying on Wi-Fi, an app, or voice control.

Importance: MEDIUM

Good value: remote control and onboard controls

remote control
Whirlpool SPIW 312 L provides remote control physical controls, ahead of 1.1% of air conditioners and equal to 81.5%.
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Whirlpool SPIW 312 L vs the average air conditioner

  • 13.8% lighter indoor unit
    Whirlpool SPIW 312 L has a lighter indoor unit than the average air conditioner (7.5 kg vs 8.7 kg).
    What it is: Indoor unit weight is the net mass of the wall-mounted indoor component.
    When it matters: A lighter indoor unit is easier to lift and places less load on the mounting surface during installation.

    Importance: HIGH

    Good value: Up to 10 kg

    Whirlpool SPIW 312 L has a lighter indoor unit than the average air conditioner (7.5 kg vs 8.7 kg).7.5 kg vs 8.7 kg
  • Includes an activated carbon filter
    Whirlpool SPIW 312 L includes an activated carbon filter, while the average air conditioner does not include an activated carbon filter.
    What it is: Indicates whether the air conditioner includes an activated carbon filter for odors and some gases.
    When it matters: When reducing cooking smells, smoke odors, or other unwanted room odors is important.

    Importance: MEDIUM

    Good value: yes

    Whirlpool SPIW 312 L includes an activated carbon filter, while the average air conditioner does not include an activated carbon filter.
  • Includes a HEPA filter
    Whirlpool SPIW 312 L includes a HEPA filter, while the average air conditioner does not include a HEPA filter.
    What it is: Indicates whether the air conditioner includes a HEPA filter for fine airborne particles.
    When it matters: When fine-particle filtration is useful for allergies, pets, or cleaner indoor air.

    Importance: LOW

    Good value: yes

    Whirlpool SPIW 312 L includes a HEPA filter, while the average air conditioner does not include a HEPA filter.
  • 2 cm lower indoor unit
    Whirlpool SPIW 312 L has a lower indoor-unit height than the average air conditioner (27 cm vs 29 cm).
    What it is: Indoor unit height is the vertical dimension of the wall-mounted indoor unit.
    When it matters: A shorter indoor unit needs less vertical wall space and fits above doors or windows more easily.

    Importance: MEDIUM

    Good value: Up to 30 cm

    Whirlpool SPIW 312 L has a lower indoor-unit height than the average air conditioner (27 cm vs 29 cm).27 cm vs 29 cm
  • 8.1x more popular
    Whirlpool SPIW 312 L is more popular than the average air conditioner (8.1 vs 1).
    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.
    Whirlpool SPIW 312 L is more popular than the average air conditioner (8.1 vs 1).8.1 vs 1
  • 10.9% higher user score
    Whirlpool SPIW 312 L has a higher user score than the average air conditioner (8.87 vs 8).
    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.
    Whirlpool SPIW 312 L has a higher user score than the average air conditioner (8.87 vs 8).8.87 vs 8
  • 31.6% cheaper
    Whirlpool SPIW 312 L is cheaper than the average air conditioner (£380 vs £500).
    Whirlpool SPIW 312 L is cheaper than the average air conditioner (£380 vs £500).£380 vs £500
  • 2.1% better value for money
    Whirlpool SPIW 312 L offers better value for money than the average air conditioner (7.19 vs 7.036).
    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.
    Whirlpool SPIW 312 L offers better value for money than the average air conditioner (7.19 vs 7.036).7.19 vs 7.04
  • Includes an activated carbon filter
    Whirlpool SPIW 312 L includes an activated carbon filter, while the average air conditioner does not include an activated carbon filter.
  • Includes a HEPA filter
    Whirlpool SPIW 312 L includes a HEPA filter, while the average air conditioner does not include a HEPA filter.
  • 13.8% lighter indoor unit
    Whirlpool SPIW 312 L has a lighter indoor unit than the average air conditioner (7.5 kg vs 8.7 kg).
  • 2 cm lower indoor unit
    Whirlpool SPIW 312 L has a lower indoor-unit height than the average air conditioner (27 cm vs 29 cm).

Total
Overall
Features
Design
  • 0.2 points lower seasonal cooling efficiency
    Whirlpool SPIW 312 L has a lower seasonal cooling efficiency (SEER) than the average air conditioner (6.1 vs 6.3).
  • 10 m² smaller room coverage
    Whirlpool SPIW 312 L covers a smaller room area than the average air conditioner (25 m² vs 35 m²).
  • 0.1 kW lower cooling capacity
    Whirlpool SPIW 312 L delivers a lower cooling capacity than the average air conditioner (3.4 kW vs 3.5 kW).
  • Does not support comfort airflow mode
    Whirlpool SPIW 312 L does not support comfort airflow mode, while the average air conditioner supports comfort airflow mode.
  • Does not support automatic self-cleaning
    Whirlpool SPIW 312 L does not support automatic self-cleaning, while the average air conditioner supports automatic self-cleaning.
  • Does not support automatic restart
    Whirlpool SPIW 312 L does not support automatic restart, while the average air conditioner supports automatic restart.
  • No Eco mode
    Does Whirlpool SPIW 312 L include Eco mode? no. What about the average air conditioner? yes.
  • Does not retain operating settings
    Whirlpool SPIW 312 L does not retain operating settings, while the average air conditioner retains operating settings.
  • 1.2 cm deeper indoor unit
    Whirlpool SPIW 312 L has a deeper indoor unit than the average air conditioner (21.7 cm vs 20.5 cm).
  • 1.3 cm wider indoor unit
    Whirlpool SPIW 312 L has a wider indoor unit than the average air conditioner (81.8 cm vs 80.5 cm).
  • Does not support comfort airflow mode
    Whirlpool SPIW 312 L does not support comfort airflow mode, while the average air conditioner supports comfort airflow mode.
    What it is: Indicates whether the air conditioner provides a comfort airflow mode that avoids blowing directly on people.
    When it matters: When you want comfortable cooling without a direct draft on people in the room.

    Importance: MEDIUM

    Good value: yes

    Whirlpool SPIW 312 L does not support comfort airflow mode, while the average air conditioner supports comfort airflow mode.
  • Does not support automatic self-cleaning
    Whirlpool SPIW 312 L does not support automatic self-cleaning, while the average air conditioner supports automatic self-cleaning.
    What it is: Indicates whether the air conditioner can run an automatic internal cleaning or drying cycle.
    When it matters: When you want easier maintenance and less residual moisture or dirt inside the heat exchanger.

    Importance: MEDIUM

    Good value: yes

    Whirlpool SPIW 312 L does not support automatic self-cleaning, while the average air conditioner supports automatic self-cleaning.
  • 0.2 points lower seasonal cooling efficiency
    Whirlpool SPIW 312 L has a lower seasonal cooling efficiency (SEER) than the average air conditioner (6.1 vs 6.3).
    What it is: SEER expresses the air conditioner’s average cooling efficiency over a typical season.
    When it matters: A higher SEER generally means less electricity is needed to deliver the same seasonal cooling.

    Importance: HIGH

    Good value: At least 6.1

    Whirlpool SPIW 312 L has a lower seasonal cooling efficiency (SEER) than the average air conditioner (6.1 vs 6.3).6.1 vs 6.3
  • Does not support automatic restart
    Whirlpool SPIW 312 L does not support automatic restart, while the average air conditioner supports automatic restart.
    What it is: Indicates whether the air conditioner restarts automatically after a power interruption.
    When it matters: When you need cooling or heating to resume without manual intervention after a power cut.

    Importance: MEDIUM

    Good value: yes

    Whirlpool SPIW 312 L does not support automatic restart, while the average air conditioner supports automatic restart.
  • No Eco mode
    Does Whirlpool SPIW 312 L include Eco mode? no. What about the average air conditioner? yes.
    What it is: Eco mode adjusts operation to reduce energy use while maintaining practical room comfort.
    When it matters: It is valuable for longer operating periods when lower electricity consumption matters more than maximum output.

    Importance: LOW

    Good value: yes

    Does Whirlpool SPIW 312 L include Eco mode? no. What about the average air conditioner? yes.
  • Does not retain operating settings
    Whirlpool SPIW 312 L does not retain operating settings, while the average air conditioner retains operating settings.
    What it is: Indicates whether the air conditioner retains its operating settings for later use.
    When it matters: When you want to restore your preferred temperature, mode, and fan settings without reconfiguration.

    Importance: LOW

    Good value: yes

    Whirlpool SPIW 312 L does not retain operating settings, while the average air conditioner retains operating settings.
  • 1.2 cm deeper indoor unit
    Whirlpool SPIW 312 L has a deeper indoor unit than the average air conditioner (21.7 cm vs 20.5 cm).
    What it is: Indoor unit depth is the front-to-back distance of the wall-mounted unit.
    When it matters: A shallower indoor unit protrudes less into the room and looks less bulky on the wall.

    Importance: MEDIUM

    Good value: Up to 22 cm

    Whirlpool SPIW 312 L has a deeper indoor unit than the average air conditioner (21.7 cm vs 20.5 cm).21.7 cm vs 20.5 cm
  • 10 m² smaller room coverage
    Whirlpool SPIW 312 L covers a smaller room area than the average air conditioner (25 m² vs 35 m²).
    What it is: Maximum recommended room area is the largest floor area the manufacturer recommends for effective operation.
    When it matters: It helps match the system to the intended room size and avoid choosing an undersized unit.

    Importance: LOW

    Good value: At least 35 m²

    Whirlpool SPIW 312 L covers a smaller room area than the average air conditioner (25 m² vs 35 m²).25 m² vs 35 m²
Total
Performance
Features
Design

Graphic comparison of Whirlpool SPIW 312 L and other products in the Air Conditioners category

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Third-party reviews

United Kingdom
amazon
4.6
51 Reviews

(Reviews last updated: August 2026)

What customers like about Whirlpool SPIW 312 L?

  • Excellent cooling and heating performance, successfully maintaining comfortable temperatures even during extreme heat waves.
  • Very quiet operation on both the indoor and outdoor units, making it highly suitable for bedrooms and living spaces.
  • Good value for money with a quality, durable build.
  • Equipped with a practical inverter motor and '6th Sense' technology that automatically adjusts temperature and fan speed based on room conditions.
  • User-friendly design with easily removable and washable filters.

What customers dislike about Whirlpool SPIW 312 L?

  • Some users reported issues with gas leaks and water leakage occurring shortly after the initial installation.
  • Customer service can be slow and unresponsive when troubleshooting hardware problems or arranging for repairs.
  • Replacement parts can be difficult or impossible to source if the unit requires repairs after a few years.

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