If you cannot manage to instal a permanent air conditioning unit then a portable air conditioner will allow you to enjoy all the benefits of traditional air conditioners but have the added benefit of being fully portable.
It’s important that you buy the right unit. You should consider these factors before you decide on a unit that’s right for you:
Calculate the cubic capacity of your room to find out how powerful a unit you need.
Before you choose a portable air conditioner, the first thing you should consider is how large of an area you’re trying to cool. UK portable air conditioners are rated in BTUs, or “British Thermal Units.” Most portable units range from 5,000 to 15,000 BTUs. The higher the BTU rating, the more powerful the unit
You need to make sure that the unit you buy will do the job adequately for the room. Hovever there’s no benefit in getting a more powerful unit than required.
You should also pay attention to the portable air conditioner’s Energy Efficiency Ratio.
The higher the EER, the more energy-efficient the portable AC unit. The current minimum requirement by law is an EER of 10. Purchase a model with the highest EER you can reasonably afford because this will eventually save you money on your energy bill.