Two stage variable speed gas fired furnace w/Nest thermostat

[Scott5]

I installed the Nest Thermostat and the furnace is running fine. However, I've read that the Nest Learning Thermostat is "more" compatible with a variable speed furnace which I have. What am I losing, if anything, by not using the Learning Thermostat? Also, do I risk damaging my variable speed HVAC system by using the regular Nest thermostat on one fan speed?

[mac3]

 Don't know but my builder put in "learning" thermostats when I specified the regular ones and I hate the "learning" since it ends up just ignoring the schedule I set up and decides to do its own thing and then rewrites the schedule.  So, I ended up deacticating the feature.  I'd happily swap thermostats with you so you don't have to get the more expensive one.

[Scott5]

Thanks for the info. I’m going to install the Learning thermostats on one of my zones and see if it makes any difference w/r/t the variable speed on my furnace blower/fan. If not, I’ll reinstall my regular Nest and return the Learning one.