Hello I need some help please, we live in France after the heat of last year we are looking at whole house reversable A/C the two cassette units in the open plan lounge/dining room +kitchen units are 2500W and one at 3500W which is about correct for the size but they want to put an outside unit of 5400W and one of 2000W, this has only been done by the Rep so may get picked up later, but wouldn't it be better if just one outside unit was 6000W or two to match the 2500W &3500W Thanks in anticipation of advice.
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