Great ideas.<p>&gt; Something I&#x27;ve always wanted to try is to have a &quot;periodic recirculation&quot; mode<p>Yes! That is one thing I want to try too.<p>I did an experiment in an office setting during summer where I found that if set on &quot;auto&quot; someone would inevitably turn the thermostat down to 65 to cool some spot that was in the sun or  where the air had gotten too warm.  When I switched the fan to &quot;always on&quot; I would set the thermostat to 70 and nobody would feel the need to adjust it.<p>I suppose depending on the cost of running the compressor vs the fan my approach may not have saved money, but it was interesting to see the difference in comfort offered by both.