I’m using a Honeywell Z-Wave thermostat with SmartThings. I have run into a few issues with this model.
I picked this unit because it has Z-Wave but also has an internal schedule. I programmed the internal schedule for the temperatures I want if we are home and I intended for SmartThings to handle adjusting the setpoints when we are away from the house.
When this thermostat receives a command from SmartThings, it goes into a “Temporary Hold.” This didn’t cause any problems for awhile but lately, the thermostat seems to inconsistently override this “Temporary Hold” with it’s own internal schedule. If it did this consistently, I could work around it. The inconsistency is the problem.
The thermostat supports an internal “energy saving” setpoint that can be triggered via Z-Wave. I have not seen anything within SmartThings that currently uses this feature. I am going to try to write an app that will do this.