Best Climate

The T6 Pro Z-Wave is the thermostat the local-control community keeps recommending when someone asks what actually works for years without drama. It has no Wi-Fi, no app, no account, and no cloud — just certified Z-Wave and physical buttons — built on Honeywell's decades of unglamorous HVAC control hardware. Note the model numbers: the long-recommended TH6320ZW2003 is discontinued; the current TH6320ZW2007 is the same thermostat with a newer Z-Wave chip, and everything here applies to both.