The 4iE® thermostat, with or without WiFi, learns how you use your heating and the unique way your house performs. It automatically suggests ways for you to save energy, e.g. what temperature you should set for when you are not at home and even when to turn the heating off early before you leave. The smart ways the 4iE® finds to heat your home more efficiently could save you up to 25% on your energy usage. This 'smart WiFi' version can learn the heat-up and cool down rates of your home to automatically set the most efficient temperatures when you’re away, reducing usage by up to 25%. You can view usage and cost graphs online and on your smartphone.
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