With my Bosch units I had Zone setup. But that doesn't necessarily mean that only the bedroom or any room in the house can receive air. What that means is it keep the temperature balanced in all rooms and run room goes unbalanced the air conditioning comes on. So you may have the right temperature in the bedroom that you want but the other rooms are probably going to be cooler. Think about it to truly have a zone system, you need to have certain trunks open and shut at different times. So maybe that's where the cost comes in. But I've never heard of that happening. To open and shut different zones forget the desired temperature seems like an expensive mechanical issue. The best system you can buy out there hands down is a Bosch.
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