Can I install a smart thermostat myself?

Yes — most smart thermostats are designed for DIY installation in 30-45 minutes. The apps guide you through wiring step by step. If you have more than 5 wires or a multi-zone system, consider hiring a pro.

Which voice assistant works best with smart thermostats?

All three major assistants (Alexa, Google, Siri) work well. The Amazon thermostat is best with Alexa. Nest is best with Google. The Emerson Sensi works with all three including Apple HomeKit — the most versatile option.

Best Budget Smart Thermostats Under $100 2026