What are smart thermostats and how do they work?
Read our guide to find out more about energy-saving smart thermostats and discover how they could help you keep your energy bills down.
Key takeaways
Smart thermostats can help reduce energy bills by using heating only when necessary and are often best suited to those with irregular schedules or who forget to adjust heating
The cost of a smart thermostat typically ranges from £150 to £280 with an additional £50 to £100 for installation
Internet-connected thermostats, combined with temperature and motion sensors, can cut down on wasted energy, helping you save money
Don't worry if your internet is down, your smart thermostat will continue to operate on the last set schedule
What is a smart thermostat?
A smart thermostat, sometimes known as an 'connected thermostat', is a Wi-Fi-enabled device that allows you to control your home's heating and cooling systems via your smartphone, tablet, or voice-controlled smart home system.
Unlike traditional thermostats, which require manual adjustments, smart thermostats offer the flexibility to change your home's temperature from anywhere and control your heating system, at any time.
Key features of smart thermostats
Your smart thermostat’s functionality will depend on the make and model you buy, and how much you’re willing to spend. Some of the most useful features include:
Voice control: Simply tell your energy-efficient thermostat to adjust the temperature without lifting a finger
Temperature alerts: Receive warnings if your home's temperature reaches levels that could freeze pipes or harm pets
Zoned heating: Manage the climate in different areas of your home independently for personalized comfort and efficiency
Geo-fencing: Your thermostat can sense when you leave or return home, adjusting the temperature accordingly for savings and comfort
Integration with other smart technology: Connect with devices like Alexa or Google Home for a seamless smart home experience
Learning capabilities: Smart thermostats can learn your schedule and local weather patterns to heat your home more efficiently
Holiday mode: Keep your home at a safe temperature to prevent issues like frozen pipes when you're away
Hot water settings: Take control of your hot water schedule, though additional equipment may be required
The benefits of investing in a smart thermostat
The advantages of smart thermostats extend beyond mere convenience. These devices can lead to significant savings on your energy bills by ensuring that you're only using heating when necessary.
Go further: More ways to save on your energy bills
They're particularly useful for those with irregular schedules or for anyone who's ever left the house only to realise they've forgotten to turn off the heating.
How much do smart thermostats cost?
When it comes to purchasing a smart thermostat, prices can vary widely, typically ranging from £150 to £280, not including the cost of professional installation, which can add another £50 to £100 to your bill.
If you're considering zoned heating, you'll also need to factor in the cost of smart thermostatic radiator valves, which can be around £60 each.
Smart thermostats vs smart meters
While smart meters display your energy usage and costs within the home, smart thermostats give you the power to control your heating remotely.
Both can play a role in managing your energy consumption, but they serve different purposes.
Can smart thermostats really save you money?
The potential savings from using a smart thermostat depend on your current energy habits. If you often forget to adjust your heating according to your needs, or if your schedule varies day to day, a smart thermostat could help you cut down on wasted energy, leading to lower bills.
What happens if my internet goes down?
Even if your internet connection fails, your smart thermostat will continue to operate on its last set schedule.
While you won't be able to use the app or online features, you can still make manual adjustments directly on the device.
How do smart thermostats work?
Smart thermostats use temperature sensors, which may be built-in or separate devices, to measure the heat in your home and automatically adjust the temperature.
Some models also come with motion sensors, sometimes known as occupancy sensors, that detect whether you're in the house and adjust the temperature accordingly. Those with motion sensors can usually detect which rooms are in use and adjust the heating there too.
Choosing the best smart thermostat
Some of the best-selling models include those from Honeywell, as well as the Nest Smart Learning Thermostat, which you can team with the likes of Apple Home Kit and the Google Home app to control your heating and other home appliances.
