Wall-mounted · Design wall unit
Mitsubishi Electric Zen (EF)
A slim, stylish unit in white, silver or black with very low noise levels.
We fitted two Zen units for a home in Maidstone.
- Three finishes
- MELCloud Wi-Fi control built in
- 7-day timer
Mitsubishi Electric air conditioning
Apex fits, services and repairs Mitsubishi Electric heat-and-cool systems as a Mitsubishi Electric air conditioning installer in Dartford, covering Kent and south-east London. That includes Zen and other M Series wall units, floor consoles, and Mr Slim ducted and cassette units for businesses.

Why Mitsubishi Electric
Mitsubishi Electric is a Japanese maker of quiet, well-built heat-and-cool systems: M Series wall units such as the Zen, floor consoles, and Mr Slim and City Multi systems for businesses. Many current units connect to the MELCloud app.
Mitsubishi Electric ranges
Ranges we fit include these. Makers update their models often, so we recommend the current one that suits your room at the survey.
Compare by type: wall-mounted systems, floor-mounted systems, ducted systems, ceiling cassette systems.
Wall-mounted · Design wall unit
A slim, stylish unit in white, silver or black with very low noise levels.
We fitted two Zen units for a home in Maidstone.
Wall-mounted · Mid-range wall unit
A compact white unit with Wi-Fi as standard and lower-impact R32 refrigerant.
Wall-mounted · Entry wall unit
A slim, compact unit for bedrooms and small rooms.
Wall-mounted · Commercial wall unit
A flat-panel Mr Slim wall unit for offices and shops, with flexible controls.
Floor-mounted · Floor-standing
Fits low on the wall, often where a radiator was, and suits lofts with sloping ceilings.
Ducted · Concealed in the ceiling
A ceiling-concealed unit only 250mm tall, with a drain pump built in.
Ducted · Concealed in the ceiling
A low, light ducted unit designed for offices, restaurants and shops.
Ceiling cassette · Flush in the ceiling
A four-way cassette with horizontal airflow and an optional 3D i-see sensor that reacts to people in the room.
Ceiling cassette · Fits one ceiling tile
A slim cassette that fits a 600mm ceiling grid and narrow voids from 245mm.
Choosing a model
Mid-range M Series wall units with MELCloud Wi-Fi built in. We fitted two 7kW AP split systems for a home in Fawkham.
Sits low on the wall, often where a radiator was. A good fit for loft rooms with sloping ceilings.
The commercial range: PKA wall units, PLA and SLZ cassettes, and PEAD ducted units for offices, shops and restaurants.
Mitsubishi Electric's home wall units carry the MSZ model prefix, from the AP and AY to the Zen. Many have MELCloud Wi-Fi built in, so you can control them from your phone, set a weekly timer and check the room temperature when you are out.
Easy to mix up
They are two separate companies with their own ranges, controllers and parts. A Mitsubishi Electric remote will not run a Mitsubishi Heavy Industries unit, and the spares are different. Check the label on the unit to see which you have.
We fit and service both. For Mitsubishi Heavy Industries we have fitted a 12kW multi-split serving six wall units, plus a 7kW kitchen system, for a home in Welling, a 3.5kW wall unit with Wi-Fi in Longfield and a 5kW system for a café in Longfield.
Aftercare
Mitsubishi Electric's warranty terms include registration timelines and yearly servicing. We service the system every year, keep the record and remind you when it is due.
We also service and repair Mitsubishi Electric units fitted by others. Our own job posts include an evening service on two Zen units we had fitted the year before.
Book a service or a repair, or read about heat pump servicing before winter.
A photo of the label tells us the model.
Olly and Andy came to install Mitsubishi HI a 7kw and a 12kw multi-split units. Not a small job as we had 7 indoor units to hang and lots of awkward trunking /pipe runs in eves and suffixes. All in all, a very friendly and professionally installation. I am especially impressed with Olly who is very careful with the work and has a keen eye for detail - a part I highly recommend. Olly and Andy came with shoe protectors, dust sheets and mobile vacuums, keeping all things tidy and clean at all times. Not pushy and very accomodating with all our requirements. Highly recommended!
Excellent Service by Apex Air Conditioning. Very responsive while working out exactly what we wanted and very impressed with the installation by Olly. Very professional and went to lot of effort to make sure everything was perfect.
Questions
Yes. Mitsubishi Electric is a Japanese maker with a long record in quiet, reliable heat-and-cool systems, and its M Series wall units run at very low indoor noise levels. Whether it is right for you depends on the room and the look you want, so we compare current models at the survey.
Yes, MELCloud. Many current wall units have it built in, and others take an adaptor. It lets you switch the system on or off, change the mode and temperature, and set schedules from your phone. We connect it to your Wi-Fi and show you how to use it at handover.
No. They are separate companies that both make air conditioning, with different ranges, controllers and parts. Both make good systems. We fit and service both, so tell us which name is on your unit's label when you book a service or repair.
Mitsubishi Electric sets its own terms. The length depends on the product, the installer's status with Mitsubishi Electric and registering the system on time, and yearly servicing is a condition. We tell you the exact warranty that applies to the model in your quote, in writing.
Yes, whoever fitted them. Send a photo of the label on the indoor unit so we know the model. If it is not cooling, heating or is showing a fault, our air conditioning repairs page explains what we check.
Talk to Olly directly. He quotes and fits the jobs himself.
Quickest way to a price: send on WhatsApp
Free survey and a fixed written quote for new systems. No obligation.