Quote:
Originally Posted by AustinChief
Yeah, it basically is just a bunch of dampers in the ducts that open and close based on each room's temp. Which to me seems like it's the same as someone manually opening/closing registers. I just don't see why one is an accepted practice and the other is not. I have no clue if zoning is actually is a good idea... but I can't see any way that it could be ok and the other less technical method is not.
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I haven't read everything you all have been posting about.
Zoning and closing dampers with a system is a lot different than closing a register off.
You can close off up to 10% of your airflow before causing problems with the extra static pressure.
Zone systems are designed to open and close dampers based on demand. But there will be a "dump" zone, where the excess air will go when it is not needed. A lot of zone systems also are on two-stage equipment where the system can check the demand and maybe only bring on the first stage of the compressor and fans, then ramp up as needed if the demand increases.