DOMANKI BTU
A practical portable air conditioner (14000 BTU) for proper, portable cooling around the home.
The Best 14000 BTU Portable Air Conditioners (UK 2026)
The most powerful portable air conditioners - 14,000 BTU and up - are made for the biggest, hottest rooms. They cost and weigh more and use more power, but they're the only portable option that can cool a large open-plan space.
What to look for
- 14,000 BTU or more for maximum cooling.
- Inverter technology for better efficiency at high output.
- A strong fan to distribute cooled air.
- Robust castors and handles for moving a heavy unit.
Our top picks
#1
#2 
BTU Portable Air Conditioners
A practical portable air conditioner (14000 BTU) for proper, portable cooling around the home.
Frequently asked questions
Is 14,000 BTU enough for a large room?
For most large UK living rooms, yes - 14,000 BTU is at the powerful end of portable units. Very large, open-plan or south-facing spaces are harder to cool, and no single portable unit will match a fitted system.
Bottom line
Our top pick is the DOMANKI BTU (our score 8.6/10) - A practical portable air conditioner (14000 BTU) for proper, portable cooling around the home..