These are example product listings while we finalise our real picks — use the comparison table and buying tips below to understand what to look for, and check back soon for live recommendations.
These listings are placeholders while we finalise our real-product picks. The buying advice and comparison table below are accurate — we just haven’t yet confirmed live stock and affiliate links for the individual models.
How we chose
We evaluated portable air conditioners against four criteria that matter most for UK homes:
Room size and BTU output
BTU (British Thermal Units) tells you how much heat a unit can remove each hour. As a rough guide: up to 7,000 BTU suits rooms under 20 m²; 9,000–10,000 BTU covers 20–30 m²; 12,000 BTU handles up to 35 m²; and 14,000 BTU is appropriate for large open-plan spaces. Use our BTU calculator to get a figure tailored to your specific room — sun exposure, ceiling height and room type all affect the result.
Noise levels
Portable units range from around 45 dB (quiet bedroom fan) to 65 dB (noisy dishwasher). If you plan to cool a bedroom, look for models rated below 50 dB. The quiet-and-dehumidify model in our list is specifically chosen for low noise.
Energy efficiency
The SEER (Seasonal Energy Efficiency Ratio) rating indicates how efficiently a unit converts electricity into cooling. Higher SEER means lower running costs. Check our running-cost calculator to compare the annual cost of different models before you buy.
Portability and setup
All portable units use a hose to exhaust hot air — typically through a window or wall vent. Dual-hose designs are more efficient because they draw fresh air for combustion rather than depressurising the room. Single-hose models are simpler to set up and adequate for occasional use.
Buying tips
Size first, then features. An undersized unit will run continuously without reaching your target temperature. Always calculate BTU before you shop.
Check the exhaust-hose length. Most hoses are 1.2–1.5 m. Measure the distance from your planned unit position to the window before ordering.
Look for a water-drainage option. UK summers can be humid. A unit with a continuous-drain mode (or a large condensate tank) saves you emptying a tray every few hours.
Timer and thermostat controls save energy by not cooling an empty room. Smart Wi-Fi models let you pre-cool before you arrive home.
