Customer Reviews For The Honeywell Home T5 Wi-Fi Smart 7-Day Programmable Thermostat

No. The T5 Smart Thermostat (RTH8800WF2022) strictly requires a standard 2.4 GHz WiFi network frequency (802.11b/g/n) to connect to your home internet. If you are using a dual-band mesh router, you will need to ensure your 2.4 GHz band is active during initial setup.

Yes, a hardwired C-wire (common wire) providing 24 VAC power is required to run the thermostat’s backlit display and WiFi radio. If your home lacks a C-wire, you must install a compatible 24V C-wire power adapter (included in select T5 retail kits or sold separately) to provide power.

No. The T5 is built exclusively for low-voltage central HVAC configurations. It works with standard conventional systems (up to 2 Heat/2 Cool) and heat pumps (up to 3 Heat/2 Cool), but it is completely incompatible with high-voltage 120-240V electric baseboard heaters or millivolt systems.

Geofencing uses the location services on your smartphone via the Resideo app. By creating a virtual boundary around your home, the T5 tracks when you leave to automatically switch into an energy-saving "Away" mode and triggers your custom "Home" settings right as you approach.

The T5 integrates smoothly with several major smart home ecosystems. Once connected to your wireless network, you can monitor your climate and change temperatures hands-free via voice commands through Amazon Alexa, Apple HomeKit, and Google Assistant.