Quote:
Originally Posted by tuccillo
No. There are also single systems with a controller to open and close dampers in the duct work to control which zone(s) are getting airflow (based on a thermostat in each zone). The better systems have multi-speed or variable speed compressors plus variable speed air handlers. How do I know this? I had such a system (Carrier Infinity) with 4 zones in a previous home . See post #2. It appears that a couple of the posters to this thread have replaced their original system with a zoned system with dampers.
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You can achieve zoning with electronic air flow dampers, but you will lose some air flow in the warmer zones. But, I don't see how a multi-speed compressor or air handler would help much because the compressor can only run at one speed at a time. Personally, I don't think multi-speed compressors have much benefit in a one story house in Florida.