I have a Heat Pump with Emergency Heat and Aux Heat (electric). I believe this could be considered a 2 stage or multi stage. I always leave the fan on for health reasons and clean the electro static filter frequently. I want to install a programmable thermostat that changes from heat to cool automatically. What should I look for in the discription details of a new thermostate for my home? Please advise... :confused:

Honeywell Vision Pro series thermostats are what you are looking for.

Go here for all your questions and answers the site explains it all.

Catalog (http://customer.honeywell.com/Honeywell/UI/Pages/Catalog/SystemCategory.aspx?Catalog=Homes&Category=Programmable+Thermostats_103&ChannelID=%7b2EB2F178-20ED-44E0-97FB-CCFB4218DD64%7d)