Daikin FTXC50D/RXC50D 18000 BTU Review | 46 Data compared

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  • Avg. price: ~£700
  • Cooling capacity: 5 kW
  • Seasonal cooling efficiency (SEER): 6.45
  • Maximum indoor-unit sound power level: 60 dB

Daikin FTXC50D/RXC50D 18000 BTU 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%

7.2

Technical Score

20.0%

7.0

User score

Very good
7.2

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%

6.2

Performance

40.0%

8.6

Features

20.0%

6.6

Design

Very good
7.0

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%

7.6

User reviews

30.0%

5.5

Popularity

User score:
United Kingdom
amazon
3.8
(11)

(Reviews last updated: August 2026)

Very good
  • 5.3
    Compactness

    Score components:

    30.0%

    1.4

    Indoor unit width

    30.0%

    3.9

    Indoor unit depth

    20.0%

    9.6

    Indoor unit height

    20.0%

    9.3

    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

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Best rankings

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

Verdict

The Daikin FTXC50D/RXC50D Sensira is an 18,000 BTU wall-mounted inverter air conditioner operating on eco-friendly R32 refrigerant with a cooling capacity range of 1.40 to 6.20 kW and heating from 1.36 to 6.60 kW. Its standout characteristics include high energy efficiencies with a 6.45 SEER (A++ class) for cooling and 4.42 SCOP (A+ class) for heating, alongside a titanium apatite deodorizing air filter, an 80% standby power-saving mode, and quiet operation as low as 29-30 dB(A). The main advantages are its prompt climate adjustment via powerful/turbo modes and excellent long-term durability. However, it requires an optional adapter for Wi-Fi/Onecta app connectivity, lacks multi-split system capability, and has a heating threshold restricted to -15°C.

Technical Specifications of air conditioner Daikin FTXC50D/RXC50D 18000 BTU

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%

6.2

Performance

40.0%

8.6

Features

20.0%

6.6

Design

7.2
Daikin FTXC50D/RXC50D 18000 BTU has a technical score of 7.22 points, which is lower than 61.8% 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%

7.6

User reviews

30.0%

5.5

Popularity

User score:
United Kingdom
amazon
3.8
(11)

(Reviews last updated: August 2026)

7.0
Daikin FTXC50D/RXC50D 18000 BTU has a user score of 6.96 points, which is lower than 96.6% 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.
5.5
Daikin FTXC50D/RXC50D 18000 BTU has a popularity of 5.5 points, which is higher than 70.2% 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%

4.0

Price

6.2
Daikin FTXC50D/RXC50D 18000 BTU has a quality-to-price ratio of 6.2 points, which is lower than 73% 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

5 kW
Daikin FTXC50D/RXC50D 18000 BTU delivers a cooling capacity of 5 kW, which is higher than that of 76.5% of air conditioners and the same as that of 6.5% 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

18,000 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

6.45
Daikin FTXC50D/RXC50D 18000 BTU has a SEER rating of 6.45, which is higher than that of 61.5% 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

4.42
Daikin FTXC50D/RXC50D 18000 BTU has a SCOP rating of 4.42, which is higher than that of 80.4% 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 Daikin FTXC50D/RXC50D 18000 BTU 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 Daikin FTXC50D/RXC50D 18000 BTU 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 Daikin FTXC50D/RXC50D 18000 BTU 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 Daikin FTXC50D/RXC50D 18000 BTU 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 Daikin FTXC50D/RXC50D 18000 BTU 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

no
Daikin FTXC50D/RXC50D 18000 BTU has no display (no); 82.6% of air conditioners do, while 17.4% do not.
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

none
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
Daikin FTXC50D/RXC50D 18000 BTU provides remote control physical controls, ahead of 1.1% of air conditioners and equal to 81.5%.
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Daikin FTXC50D/RXC50D 18000 BTU vs the average air conditioner

  • 0.42 points higher seasonal heating efficiency
    Daikin FTXC50D/RXC50D 18000 BTU achieves a higher seasonal heating efficiency (SCOP) than the average air conditioner (4.4 vs 4).
    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

    Daikin FTXC50D/RXC50D 18000 BTU achieves a higher seasonal heating efficiency (SCOP) than the average air conditioner (4.4 vs 4).4.42 vs 4
  • 2 more fan speeds
    Daikin FTXC50D/RXC50D 18000 BTU provides more fan speed options than the average air conditioner (5 vs 3).
    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

    Daikin FTXC50D/RXC50D 18000 BTU provides more fan speed options than the average air conditioner (5 vs 3).5 vs 3
  • 1.5 kW higher cooling capacity
    Daikin FTXC50D/RXC50D 18000 BTU delivers a higher cooling capacity than the average air conditioner (5 kW vs 3.5 kW).
    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

    Daikin FTXC50D/RXC50D 18000 BTU delivers a higher cooling capacity than the average air conditioner (5 kW vs 3.5 kW).5 kW vs 3.5 kW
  • 155 m³/h higher indoor-unit airflow
    Daikin FTXC50D/RXC50D 18000 BTU delivers a higher indoor airflow rate than the average air conditioner (750 m³/h vs 595 m³/h).
    What it is: Maximum indoor-unit airflow is the greatest volume of air the indoor unit can circulate in one hour.
    When it matters: Higher airflow can distribute cooled or heated air more quickly, especially in larger rooms.

    Importance: HIGH

    Good value: At least 600 m³/h

    Daikin FTXC50D/RXC50D 18000 BTU delivers a higher indoor airflow rate than the average air conditioner (750 m³/h vs 595 m³/h).750 m³/h vs 595 m³/h
  • 0.15 points higher seasonal cooling efficiency
    Daikin FTXC50D/RXC50D 18000 BTU achieves a higher seasonal cooling efficiency (SEER) than the average air conditioner (6.5 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

    Daikin FTXC50D/RXC50D 18000 BTU achieves a higher seasonal cooling efficiency (SEER) than the average air conditioner (6.5 vs 6.3).6.45 vs 6.3
  • 5.46x more popular
    Daikin FTXC50D/RXC50D 18000 BTU is more popular than the average air conditioner (5.46 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.
    Daikin FTXC50D/RXC50D 18000 BTU is more popular than the average air conditioner (5.46 vs 1).5.46 vs 1
  • 0.2 cm lower indoor unit
    Daikin FTXC50D/RXC50D 18000 BTU has a lower indoor-unit height than the average air conditioner (28.8 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

    Daikin FTXC50D/RXC50D 18000 BTU has a lower indoor-unit height than the average air conditioner (28.8 cm vs 29 cm).28.8 cm vs 29 cm
  • 0.42 points higher seasonal heating efficiency
    Daikin FTXC50D/RXC50D 18000 BTU achieves a higher seasonal heating efficiency (SCOP) than the average air conditioner (4.4 vs 4).
  • 1.5 kW higher cooling capacity
    Daikin FTXC50D/RXC50D 18000 BTU delivers a higher cooling capacity than the average air conditioner (5 kW vs 3.5 kW).
  • 155 m³/h higher indoor-unit airflow
    Daikin FTXC50D/RXC50D 18000 BTU delivers a higher indoor airflow rate than the average air conditioner (750 m³/h vs 595 m³/h).
  • 0.15 points higher seasonal cooling efficiency
    Daikin FTXC50D/RXC50D 18000 BTU achieves a higher seasonal cooling efficiency (SEER) than the average air conditioner (6.5 vs 6.3).
  • 2 more fan speeds
    Daikin FTXC50D/RXC50D 18000 BTU provides more fan speed options than the average air conditioner (5 vs 3).
  • 0.2 cm lower indoor unit
    Daikin FTXC50D/RXC50D 18000 BTU has a lower indoor-unit height than the average air conditioner (28.8 cm vs 29 cm).
  • 3 dB higher outdoor sound power
    Daikin FTXC50D/RXC50D 18000 BTU operates with a louder outdoor unit than the average air conditioner (65 dB vs 62 dB).
  • 4 dB higher indoor sound power
    Daikin FTXC50D/RXC50D 18000 BTU operates with a louder indoor unit than the average air conditioner (60 dB vs 56 dB).
  • Does not support comfort airflow mode
    Daikin FTXC50D/RXC50D 18000 BTU does not support comfort airflow mode, while the average air conditioner supports comfort airflow mode.
    Provides an airflow pattern intended to reduce direct drafts.
  • Does not support automatic self-cleaning
    Daikin FTXC50D/RXC50D 18000 BTU does not support automatic self-cleaning, while the average air conditioner supports automatic self-cleaning.
  • Does not support Wi-Fi connectivity
    Daikin FTXC50D/RXC50D 18000 BTU does not support Wi-Fi connectivity, while the average air conditioner supports Wi-Fi connectivity.
  • Does not support an anti-mould function
    Daikin FTXC50D/RXC50D 18000 BTU does not support an anti-mould function, while the average air conditioner supports an anti-mould function.
  • 6.8 cm deeper indoor unit
    Daikin FTXC50D/RXC50D 18000 BTU has a deeper indoor unit than the average air conditioner (27.3 cm vs 20.5 cm).
  • 18.5 cm wider indoor unit
    Daikin FTXC50D/RXC50D 18000 BTU has a wider indoor unit than the average air conditioner (99 cm vs 80.5 cm).
  • No display
    Daikin FTXC50D/RXC50D 18000 BTU has no display (no), while the average air conditioner does (yes).
  • 9.2% heavier indoor unit
    Daikin FTXC50D/RXC50D 18000 BTU has a heavier indoor unit than the average air conditioner (9.5 kg vs 8.7 kg).
  • Does not support comfort airflow mode
    Daikin FTXC50D/RXC50D 18000 BTU does not support comfort airflow mode, while the average air conditioner supports comfort airflow mode.
    Provides an airflow pattern intended to reduce direct drafts.
    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

    Daikin FTXC50D/RXC50D 18000 BTU does not support comfort airflow mode, while the average air conditioner supports comfort airflow mode.
  • Does not support automatic self-cleaning
    Daikin FTXC50D/RXC50D 18000 BTU 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

    Daikin FTXC50D/RXC50D 18000 BTU does not support automatic self-cleaning, while the average air conditioner supports automatic self-cleaning.
  • Does not support Wi-Fi connectivity
    Daikin FTXC50D/RXC50D 18000 BTU does not support Wi-Fi connectivity, while the average air conditioner supports Wi-Fi connectivity.
    What it is: Indicates whether the air conditioner can connect to Wi-Fi for remote or smart control.
    When it matters: When you want to change settings remotely, set schedules, or integrate the unit with a smart home.

    Importance: MEDIUM

    Good value: yes

    Daikin FTXC50D/RXC50D 18000 BTU does not support Wi-Fi connectivity, while the average air conditioner supports Wi-Fi connectivity.
  • 6.8 cm deeper indoor unit
    Daikin FTXC50D/RXC50D 18000 BTU has a deeper indoor unit than the average air conditioner (27.3 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

    Daikin FTXC50D/RXC50D 18000 BTU has a deeper indoor unit than the average air conditioner (27.3 cm vs 20.5 cm).27.3 cm vs 20.5 cm
  • 3 dB higher outdoor sound power
    Daikin FTXC50D/RXC50D 18000 BTU operates with a louder outdoor unit than the average air conditioner (65 dB vs 62 dB).
    What it is: Maximum outdoor-unit sound power level measures the greatest acoustic power emitted by the outdoor unit.
    When it matters: A lower value reduces the likelihood of disturbing neighbours or nearby outdoor spaces.

    Importance: MEDIUM

    Good value: Up to 65 dB

    Daikin FTXC50D/RXC50D 18000 BTU operates with a louder outdoor unit than the average air conditioner (65 dB vs 62 dB).65 dB vs 62 dB
  • 18.5 cm wider indoor unit
    Daikin FTXC50D/RXC50D 18000 BTU has a wider indoor unit than the average air conditioner (99 cm vs 80.5 cm).
    What it is: Indoor unit width is the horizontal side-to-side dimension of the wall-mounted unit.
    When it matters: A narrower indoor unit fits more easily on limited wall sections and between furniture or openings.

    Importance: MEDIUM

    Good value: Up to 80 cm

    Daikin FTXC50D/RXC50D 18000 BTU has a wider indoor unit than the average air conditioner (99 cm vs 80.5 cm).99 cm vs 80.5 cm
  • 4 dB higher indoor sound power
    Daikin FTXC50D/RXC50D 18000 BTU operates with a louder indoor unit than the average air conditioner (60 dB vs 56 dB).
    What it is: Maximum indoor-unit sound power level measures the greatest acoustic power emitted by the indoor unit.
    When it matters: A lower value supports a quieter room, which is especially useful in bedrooms and workspaces.

    Importance: HIGH

    Good value: Up to 55 dB

    Daikin FTXC50D/RXC50D 18000 BTU operates with a louder indoor unit than the average air conditioner (60 dB vs 56 dB).60 dB vs 56 dB
  • No display
    Daikin FTXC50D/RXC50D 18000 BTU has no display (no), while the average air conditioner does (yes).
    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

    Daikin FTXC50D/RXC50D 18000 BTU has no display (no), while the average air conditioner does (yes).

Graphic comparison of Daikin FTXC50D/RXC50D 18000 BTU and other products in the Air Conditioners category

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Third-party reviews

United Kingdom

(Reviews last updated: August 2026)

What customers like about Daikin FTXC50D/RXC50D 18000 BTU?

  • High energy efficiency with A++ rating in cooling mode, leading to lower electricity bills.
  • Eco-friendly operation utilizing R-32 refrigerant which minimizes environmental impact.
  • Fast and powerful cooling/heating performance well-suited for rooms up to 35-40 square meters.
  • Quiet indoor unit performance, especially when utilizing the comfortable sleeping mode.
  • Effective air purification featuring an apatite-coated titanium deodorizing filter to neutralize odors and particles.
  • Flat, elegant front panel design that blends easily with interior decor and is easy to clean.

What customers dislike about Daikin FTXC50D/RXC50D 18000 BTU?

  • Wi-Fi connectivity module is optional and requires an additional purchase of a USB adapter.
  • Limited to basic 3-step manual fan speed adjustments compared to other higher-end series.
  • Air distribution mechanics feature a basic entry-level swing system with fewer airflow control options.
  • The outdoor unit is relatively heavy at 39 kg, which can make structural wall mounting more complex.

Video reviews

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