I am looking for recommendations for a Z-Wave thermostat.
My current setup is Insteon for lighting and the HVAC thermostat, an ISY-994ZW, an ELK for security and access control for a gate, 2 stand-alone DVRs for video surveillance, and a NEC SL2100 phone system with IP phones, and the house wired with CAT6 for network (with a Engenius AC access point for wifi). I use the ELK-ISY interface, and use the ELK for relay inputs and output to the ISY. I have used the Insteon relay I/O devices, and don't like them because they are unreliable.
We had a major power problem and the Insteon thermostat died. It is out of warranty, and this is the second one Installed (the first one was replaced under warranty). Knowing the reputation of these Insteon thermostats, I wanted to try a Z-Wave thermostat instead of getting another Insteon. I am looking at Z-Wave door locks, but not ready to take the plunge just yet. I have no other Z-Wave devices in the system. The ISY is located directly below where the thermostat is located. I have a 6 wire cable going from the HVAC to the thermostat.
Anyone have any recommendations for a thermostat that will work with the ISY? Any suggestions on using Z-Wave?
I don't want WIFI enabled stuff, because I don't want anything to go into someone's cloud. I have a VPN server/router and can access the ISY from anywhere that has an Internet connection. I have used Agave and the ISY dashboard with the Insteon thermostat.
On another note, I am working on a data logger and remote access device for the Elk using a Raspberry Pi. I know about the code written in Python, but I don't like Python, especially for real-time applications. I prefer C for the PI, and am writing this in C. Python is a dynamic language, and lots of stuff goes on in the background, while C is static and the response is fairly dependable.
Thanks in advance.
Steve