First summer in our new (to us) home so we're experimenting. One of the first things I did was install an
ecobee Smart Si thermostat. Tried going with 78 as the AC threshold originally, but it's at 76 right now.
Usually have windows open, have ceiling fans in every room, so unless we are getting up to mid-80s and humid it usually isn't necessary. I find once the humidity hits about 60-70% it starts to make an impact, it made 78 not really doable.
PS love the ecobee so far. Was easy enough to install, from all accounts and from what I've seen online they have prompt support (Canadian, eh?) and rock solid in the HVAC department. It figured out our house and how long it took to heat and cool, uses the weather to assist as well, couldn't be happier.
Originally saw it when one of their reps posted in a thread and it seemed like a spammy response, but a bit too literate and helpful to actually be spam