There are other thermostats that can independently run the fan. I had a Filtrete thermostat. Natively, it didn't, but with a small program on my computer, it could be programmed to run the fan a certain percentage of every hour. I think the next step up had the fan stuff built in. Honeywell also makes a thermostat that has that ability.
the
radio thermostat ct80 has the ability to run the fan on a timer. I think I had the Filtrete branded CT50 and used a $15 app called setmythermostat which controlled gave me the ability, but required my PC to always be on (which it is).
The Honeywell Vision Pro 8000 has a circulate mode, but it appears to be hard set to 35%. Available on Amazon for $135 or so.
I think a little research would probably yield a few others.
__________________
Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa
SOLD 2004 - gone but not forgotten