It’s compatible with existing Honeywell Home thermostat wiring plates — so you might not have to do any wiring at all to install it. Resideo says that if you use the app’s recommended set ...

and stick the thermostat onto the plate. Resideo also includes a power adapter for installs where a C (common) wire is not present. Resideo has standardized the Honeywell Home T-series wiring ...

You’re about to take the plunge on a smart thermostat ... Also, Honeywell should work with your home. All of them should work even without a c-wire thanks to AC adapters. Your heating and ...

But if you have other, more complex systems, you might need to run extra wiring or spend more time setting up the T9 (or any smart thermostat, for that matter). The Honeywell Home website provides ...

The Honeywell Home T9 ... a C-wire adapter (for homes that don't have a C-wire), mounting screws, a mounting plate, wire labels, and an installation guide. The thermostat is compatible with ...