Mine is Z-Wave, the next model up required an internet connection and a subscription if you wanted to access it from remote. The HVAC guy probably thought that

Mine is Z-Wave, the next model up required an internet connection and a subscription if you wanted to access it from remote. The HVAC guy probably thought that I was nuts for wanting the one that I got, since the price was similar. Six years later and I'm still controlling it from Z-Wave.