Even better! Systems using geo-fencing operate with an imaginary circle around your house, to determine whether the heating must be turned up. With geo-fencing, the heat is often turned up too late and/or is applied unnecessarily while away, to prevent that you'll arrive in a cold house.
Drebbl not only considers your current location, but also learns your mobility patterns. This allows Drebbl to save energy longer, and still heat your home just in time before arrival. In Dutch homes built before 1989, the Drebbl thermopilot on average saves € 130 per year.
For more information, we refer to our background article "Waarom Drebbl beter werkt dan geo-fencing" (in Dutch)