Thermostat: Called the “brain” of the HVAC system, the thermostat tells the process when to turn on and off depending on its temperature configurations. *Relates to simple install in contiguous US only. Topic to installer & product availability. Far more limitations use. Installation services certain by Lowe’s labor restricted warranty https://republicindex.com/comprehensive-hvac-services-in-sacramento-and-rancho-cordova-installation-repair-and-maintenance/