10 Best Multi Split Air Conditioner in The UK

Last updated on 18/07/2025

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Best Choice

9.7

Exceptional

Generic

42000BTU Solar Inverter Multi 9k Zones Split Air Conditioner & Heater - 5 Zones

Main Highlights

5 Zones

42000BTU Ductless Multi 12k Zones Mini Split Air Conditioner & Heater - 4 Zones

Main Highlights

4 Zones

36000BTU Ductless Multi 18k Zones Mini Split Air Conditioner & Heater - 2 Zones

Main Highlights

2 Zones

electriQ iQool Multi‑Split 2×18,000 BTU + 12,000 BTU 3‑Zone Smart Ceiling Cassette Air Conditioner with Heat Pump, 360° Airflow, A++/A+ Inverter, Wi‑Fi & “I Feel”, Includes 5 m Pipe Kit

Why We Love It

High cooling capacity: 42000 BTU.
Energy efficient, A++/A+ rating.
Smart WiFi control included.

Main Highlights

Multi-Zone Climate Control: One outdoor unit powers two 18k and one 12k ceiling cassette indoor units—providing customized comfort for up to three rooms from a single condenser
Powerful Heating & Cooling: Delivers a combined capacity of 13.1 kW for efficient temperature control across multiple zones, powered by super DC inverter heat-pump technology
360° Omni-Directional Airflow: Four-way ceiling cassettes ensure balanced air distribution and efficient comfort from every corner of the room
Ultra-Efficient & Quiet Operation: Offers SEER 6.1 (A++ cooling) and SCOP 4.0 (A+ heating) ratings, with whisper-quiet operation ideal for residential or office settings
Smart Wi‑Fi & “I Feel” Sensor: Control via smartphone app or voice, with the “Follow Me” feature adjusting temperature based on remote sensor location for maximum comfort
PLEASE NOTE: These units contain a gas which is governed by F-Gas regulations. The gas must be handled by a qualified F-Gas personnel. 2 Year warranty is subject to commissioning by qualified F-Gas engineers. 5 Years extended parts warranty is subject to annual service. Further information on the requirements and ensuring the engineer is qualified can be found at GOV UK.

27000BTU Ductless Multi 9k Zones Mini Split Air Conditioner & Heater - 3 Zones

Main Highlights

3 Zones

electriQ iQool Multi‑Split 18,000 BTU + 12,000 BTU Smart Ceiling Cassette Air Conditioner with Heat Pump, 3‑Zone Control, A++/A+ Efficiency, 360° Airflow, Includes 5 m Pipe Kit

Why We Love It

High cooling capacity.
Energy-efficient performance.
Smart WiFi control.

Main Highlights

Multi‑Zone Climate Control One outdoor unit powers two ceiling cassette indoor units (18,000 BTU + 12,000 BTU), managing up to three rooms with a single condenser, reducing installation and operating expense
Dual Cooling & Heating Capability Delivers total cooling and heating capacity of 13.1 kW via a super DC inverter compressor with heat‑pump functionality, ensuring year‑round comfort
Efficient 360° Airflow Cassette Design Ceiling cassette units distribute airflow evenly across 360°, ideal for rooms with limited ceiling space and high comfort coverage
Smart Wi‑Fi Control ＆ Smart Features Remote control, scheduling, and smart operation available via smartphone; includes Sleep Mode, 24‑hour timer, auto‑restart, and self‑diagnostics
Ultra‑Quiet Operation Designed for low‑noise environments, suitable for offices or living rooms with minimal audible disruption
PLEASE NOTE - These units contain a gas which is governed by F-Gas regulations. The gas must be handled by a qualified F-Gas personnel. 2 Year warranty is subject to commissioning by qualified F-Gas engineers. 5 Years extended parts warranty is subject to annual service. Further information on the requirements and ensuring the engineer is qualified can be found at GOV UK.

Generic 18000BTU Ductless Multi 9k Zones Mini Split Air Conditioner & Heater - 2 Zones, White

Why We Love It

Powerful dual zone cooling.
Efficient heating capacity.
High energy efficiency rating.

Main Highlights

2 Zones (9,000BTU for each zone)
18,000 BTU Cooling
20,000 BTU Heating
23 Seer Rating

24000BTU Ductless Multi 12k Zones Mini Split Air Conditioner & Heater - 2 Zones

Main Highlights

2 Zones

Senville LETO Series Wall Split Air Conditioner Heat Pump, Wall Mounted, 12000 BTU, Inverter, White

Why We Love It

All-season temperature solution.
Stylish air conditioning.
Comprehensive installation package.

Main Highlights

VERSATILE 4-IN-1 WALL SPLIT: Dive into an all-season solution with our wall split AC and heating system, featuring air conditioning, a robust heat pump (functional up to 5F/-15C), dehumidifier, fan, and an accelerated turbo function. Enjoy the reliability of a DC Inverter that's UL Listed, AHRI Certified.
STYLISH & FUNCTIONAL WALL SPLIT AC: Crafted for both home and business, this wall split air conditioner provides dynamic performance without compromising on aesthetics. Ideal for bedrooms, living areas, commercial spaces like stores, eateries, and warehouses.
COMPLETE INSTALLATION PACKAGE: Comes with an indoor air handler, outdoor condenser, intuitive remote control, and a comprehensive installation kit featuring a 16ft. line set and communication wire. Pre-loaded with R32 refrigerant catering up to 25 ft. A heads-up: This system mandates professional installation – it's not a DIY mini split AC.
TRUST WORTHY 5-YEAR WARRANTY: Your investment is safeguarded with our wall split heat pump's industry-leading warranty – 5 years on parts replacement and another 5 on the compressor. Benefit from the established quality of Senville, complemented by complimentary technical assistance. Labor not included.

12000 BTU Smart WiFi A++ Easy-fit DC Inverter Wall Split Air Conditioner with 5 Meters Pipe kit - Wall Mounted Air Conditioning Unit with 5 Years Warranty

Why We Love It

Eco-friendly with A+++ rating.
Ideal for both home, offices.
Offers cooling, heating, dehumidification.

Main Highlights

Extremely energy efficient with an A+++ rating
Perfect for use in the home or large offices
3-in-1: Cooling, heating and dehumidifying
EasyFit pre-gassed with 5 m pipe and cable kit supplied as standard
Really powerful but quiet in operation

8.8

Excellent

We scanned 1079 products

We reviewed these offers relevant to the Multi Split Air Conditioner within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Generic, Electriq, Senville, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Multi Split Air Conditioner in the market, we considered we took a deep dive into 5396 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is 42000BTU Solar Inverter Multi 9k Zones Split Air Conditioner & Heater - 5 Zones. We love many things about this product by Generic.
The best value product for most shoppers and where user satisfaction is continuously the highest is 42000BTU Ductless Multi 12k Zones Mini Split Air Conditioner & Heater - 4 Zones by Generic based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Multi Split Air Conditioner and the best cost-to-value ratio is 12000 BTU Smart WiFi A++ Easy-fit DC Inverter Wall Split Air Conditioner with 5 Meters Pipe kit - Wall Mounted Air Conditioning Unit with 5 Years Warrantyat Electriq with a % discount.
Our list of the best Multi Split Air Conditioner is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Multi Split Air Conditioner in The UK

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We scanned 1079 products

We concluded that: