Lennox L40 Smart Thermostat

The L40 is a compact smart thermostat with a simple four-color touchscreen and large on-screen controls suited to quick taps. It supports single-stage HVAC systems and uses Schedule IQ to learn your household routine, factoring in geofencing and comfort preferences to shape daily temperature plans. It now works with major smart home platforms through Matter, so it can sit alongside lights, locks, and sensors in scenes and automations without extra hubs.