Posted by MarkB_MI on October 10, 2021 at 17:56:36 from (174.211.38.233):
In Reply to: Re: Home HVAC unit posted by Geo-TH,In on October 10, 2021 at 11:59:52:
> For my house I have a 20 year old seer 12 central. I don't hear a thing.
Well, since it still works I wouldn't replace it. But if it fails you'll probably replace it with a SEER 16 or so, which is still far less efficient than a typical mini-split. I suppose somebody makes a SEER 20+ central air system, but they're probably prohibitively expensive for most applications.
> Are you saying you don't hear the fan on mini splits??
I'm saying most of the time, the indoor blowers aren't audible, or are barely audible. The outside unit is so quite that you have to be standing right next to it to hear it above ambient noise. And even then it's often so quiet I have to look at the fan to be sure its running.
Note that ductless systems use variable-speed DC motors for their compressors, fans and blowers. They do make a little noise when they're operating at full capacity, but once the rooms are cooled down the ductless systems get ridiculously quiet.
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