The ability to remotely control a home's temperature appeals to those with hectic schedules; if you have a late-running meeting there's no reason to heat an empty home, right? On holiday and realised you forgot to turn off the heat? Fixing the error is just a few taps away on your smartphone.
Smart thermostats don't directly save you money. However, they provide the ability to heat your home more efficiently which should save you in the long run. You will also receive reports about your usage, which can help you better understand your heating usage, and adjust your behaviour and preferences accordingly to save money.