Nest Thermostat (2020) Review: Pros, Cons, Common Issues & Is It Worth It?
Best Budget Smart Thermostat
Learning: Manual schedule | App control: Yes | Works with: Google Home & Alexa | Display: Mirror finish
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Overview
The Nest Thermostat launched in 2020 as Google’s most affordable smart thermostat — simpler than the Learning Thermostat and Thermostat E, but still connected and controllable from your phone. The key difference is that this model doesn’t self-learn. Instead of programming itself, you set a schedule manually in the app.
For households that don’t want a thermostat making decisions on their behalf and just want remote control and scheduling from an app, this is the one to look at.
Key Features
- Remote control via the Google Home app
- Schedule programming via app
- Home/Away Assist — adjusts when you leave based on phone location
- Works with Google Home and Amazon Alexa
- Savings Finder suggests schedule tweaks to reduce energy use
- Compatible with most UK combi boilers
- Mirror-finish display
Setup & Compatibility
Setup is designed to be DIY-friendly. The app walks you through compatibility and installation step by step. Compatible with most UK combi boilers. Check compatibility via the Google Home app before purchasing.
Pros
- Most affordable Google Nest thermostat
- Easy to install — genuinely designed for non-technical users
- App control is simple and clear
- Home/Away Assist works without manual input
- Savings Finder is useful for energy-conscious users
Cons
- Doesn’t self-learn — you have to programme the schedule yourself
- Less compatible with older or more complex heating systems
- Mirror finish shows fingerprints easily
- No hot water control on most UK installations
- Requires a Google account
Common Problems & Fixes
Boiler compatibility is the main issue to check before buying — this model works with fewer systems than the Learning Thermostat. If the thermostat powers on but the boiler doesn’t respond, a wiring check is usually the first step.
Home/Away Assist not working correctly usually comes down to location permissions not being enabled in the Google Home app. For a full list of known faults and fixes see our troubleshooting guide.
Real World Performance
It does what it promises — remote control of your heating from your phone, automatic adjustment when you leave the house and a clean interface for setting a schedule.
It won’t learn your habits on its own, but if you spend 10 minutes setting up a schedule in the app it runs reliably from there. The mirror-finish display looks smart but shows fingerprints.
Best Alternatives
- Nest Thermostat E — Self-learning and a cleaner display for a bit more money
- Nest Learning Thermostat — The full Nest experience if budget isn’t a concern
Who Should Buy It?
A good starting point for anyone who wants smart heating control without spending much. Particularly suited to renters or people who want to try a smart thermostat without committing to a premium model.
Verdict
A straightforward, affordable smart thermostat that does everything the more expensive models do except programme itself. A sensible entry point into Nest’s range.
🔧 Troubleshooting guide · Nest Thermostats hub · All Smart Home Devices