It's getting really hot in my home office - 28-30C and its becoming unbearable. I have a 10 000 BTU portable air conditioning unit but its pretty much useless - only capable of reducing the ambient temperature by 2-3C.
Most air-conditioning companies have quoted me for a 2.5-3kW system but I feel this is underpowered for my requirements as this is equivalent to 10 000 BTU/hr. Does anyone know if the ratings of split systems and portable units are directly comparable?
I was looking at getting a 5-6kW system instead but would this be overkill for a room 5x5m. My objective is to reduce the temperature from 28-30C to ~18C.
Any input anyone please?