Window type, bracket angle and neighbour noise decide the shortlist before BTU does.
EU renter buying guide
Portable split ACs that fit European flats
Choose a PortaSplit-style air conditioner by window fit, room size, install risk, noise, stock and real owner evidence before you spend heatwave money.
Start here if you rent, cannot install a fixed wall split, and need a no-drill route.
- Cooling
- 3.5 kW
- Quiet mode
- 39 dB
- Energy
- A++
Match room size, heating need, weight and budget against products that can actually be installed.
Pair official specs with owner threads, real install clips and professional coverage.
Check stock, return rules, drainage, filter cleaning and storage before the heatwave rush.
Fit check
First: can the outdoor unit sit safely?
A powerful unit is useless if your window, balcony or landlord rules make the outdoor box impossible to place.
Shortlist
Start with your likely setup.
Three practical starting points: renter-friendly, small-room cooling and higher-power balcony setups.
Best overall Midea PortaSplit 12K
- Best for
- Renters with tilt-turn, French balcony or balcony access who want one serious first pick.
- Watch out
- Heavy indoor unit and outdoor noise can still be deal breakers.
- 3.5 kW cooling
- Heating mode
- Easy install
Small room pick Midea PortaSplit Cool 8K
- Best for
- Bedrooms and small offices where cooling matters more than winter heating.
- Watch out
- Cooling-only model; do not mix it up with the heat-pump PortaSplit.
- 2.35 kW cooling
- Cooling only
- Easy install
High power pick Argo Ulisse 13 DCI Eco WiFi
- Best for
- Balcony setups that need more cooling power and can justify specialist pricing.
- Watch out
- Not an impulse renter buy; price, hose handling and package weight matter.
- 4 kW cooling
- Cooling only
- Moderate install
Model finder
Find the right model for your room.
Set your window type, room size, heating need and budget. The match score prioritizes install fit before raw cooling power.
Strong cooling, heat-pump mode and no-drill setup make it the easiest serious alternative to a wall split. The catch is the 32.5 kg indoor unit and whether your window can hold the outdoor box safely.

Midea PortaSplit 12K
The PortaSplit most renters should check first.
- Cooling
- 3.5 kW
- Quiet
- 39 dB
- SEER
- 6.1
- Indoor
- 32.5 kg

Climia CMK 3500
A compact cool-and-heat option for planned setups.
- Cooling
- 3.5 kW
- Quiet
- 39 / 47 / 50 / 51
- SEER
- n/a
- Indoor
- 22 kg

Midea PortaSplit Cool 8K
A cheaper PortaSplit for bedrooms and small offices.
- Cooling
- 2.35 kW
- Quiet
- 38 dB
- SEER
- 6.1
- Indoor
- 29 kg

Argo Ulisse 13 DCI Eco WiFi
More power, more money, less impulse-buy friendly.
- Cooling
- 4 kW
- Quiet
- 34-40
- SEER
- n/a
- Indoor
- n/a

Trotec PAC 4600
Large-room cooling from a specialist retailer.
- Cooling
- 4.3 kW
- Quiet
- 57
- SEER
- n/a
- Indoor
- 38 kg

REMKO RKL 495 DC
Dealer-led cooling for people who want support.
- Cooling
- 4.3 kW
- Quiet
- n/a
- SEER
- 4.7
- Indoor
- n/a

Climia CMK 4000 WiFi
A high-power German specialist model for comparison.
- Cooling
- 4 kW
- Quiet
- 34-37
- SEER
- n/a
- Indoor
- 44 kg
Usually the easiest renter setup, as long as the gap and bracket angle are realistic.
Often workable, but the guide must show how the outdoor unit is restrained.
The most forgiving setup. It gives bigger systems enough air and somewhere to drain.
Needs its own guide because bracket angles and rain protection vary a lot.
Do not assume continental bracket examples apply to UK casement windows.
Useful for specialist systems, but it is no longer a no-drill renter setup.
Watch first
Watch the install before you buy.
Short videos reveal what spec sheets hide: bracket size, hose bend, window gaps and how large the unit looks in a real room.
PortaSplit / Midea RAC PortaSplit explainer
Large TikTok clip from an HVAC creator; good for seeing how the product is explained to non-specialists.
Open originalMidea PortaSplit Test: mobile Klima speed test
German speed-test style clip; useful for the DACH buyer angle.
Open originalPortaSplit 4-in-1 UK trade explainer
UK trade-style clip that shows the wall bracket and 4-in-1 pitch.
Open originalUse these cards to verify claims after a video makes a product look promising.
Midea Portasplit 12000 BTU Mobile Air Conditioner
Owner thread with the less polished questions: condensation, errors, price and window fit.
Open originalMidea Portasplit UK
Useful because UK windows create different bracket problems from tilt-turn windows.
Open originalPourquoi ce climatiseur mobile a split est en rupture partout
French coverage of sell-outs and why the product caught attention.
Open originalMidea PortaSplit official product specs
Official specs for energy class, dimensions, sound and installation claims.
Open originalClimia CMK 4000 WiFi product page
Good source for line length, weight, noise and current availability.
Open originalREMKO RKL DC local air conditioning systems
Shows how REMKO sells mobile splits through a more professional route.
Open originalWhere to buy
Stock depends on country.
Heatwaves can empty one market while another still has stock. Check warranty, plug type, delivery weight and return rules before buying.
Germany / Austria
Best place to start for DACH stock checks and tilt-turn window advice.
- MediaMarkt
- Saturn
- Amazon DE
- Otto
- specialist HVAC shops
France
Heatwaves can empty stock quickly, so French prices need their own watchlist.
- Amazon FR
- Leroy Merlin
- Dealabs
Switzerland
Good for Argo and Midea owner reviews. Keep CHF pricing separate from EUR pages.
- Galaxus
- Digitec
- Dantherm
- Aktobis
United Kingdom
UK casement windows make bracket guidance more important than raw cooling specs.
- Amazon UK
- Joybuy UK
- Appliances Direct
- Midea UK
After delivery
Check the boring parts before you commit.
A portable split still needs owner work. These checks reduce return problems, neighbour complaints and the chance of discovering a maintenance issue during the first heatwave.
Check package weight, stair access, return window and whether opened units can still be returned.
Know where condensate goes in cooling, dehumidifying and heating modes before the first hot night.
Plan filter cleaning, winter storage and how the hose or outdoor box is protected when not in use.
Outdoor sound, balcony rules and night-time use can matter more than another 500 BTU on paper.
Method
Why the order looks this way.
- Window fit is scored before headline BTU.
- A split hose path matters because it avoids the negative-pressure problem of monoblock units.
- Indoor comfort noise and outdoor neighbour noise are judged separately.
- Official specs are paired with owner threads, videos or professional coverage.
- Stock and prices should be refreshed during every heatwave update.