Portable Air Con makan electric like hell! This is something most people do not realise. You buy 1hp air con but you will pay for 2 hp air con electric bill! Thats how power hungry a Portable air con is.

Also the hot air TUBE gets damn hot....and the heat from this TUBE will expel heat inside the cabin making it hard for the air con to cool the place down. Dont waste your money on this. Install a permanent air con is the smart choice.