Be aware that somewhere in the fine print the Mitsubishi Electric Airconditioner is not designed to tolerate temperature above 40 degrees. Of course we should have looked for that bit of information, because when you happily put in an airconditioner you would be thinkingIs it going to conk out when it gets to 40 degrees! Would have been good to know that before ours was installed, as Mitsubishi arent going to help us at all.