French homes adopt smart thermostats and window upgrades to cut energy bills

Voltalis offers a connected thermostat that links radiators and water‑heater tanks to a smartphone via Wi‑Fi. Users can adjust temperatures remotely, select modes such as boost, short‑absence or vacation, and receive alerts about faults or unnecessary consumption, helping to avoid heating waste.

Replacing old, single‑glazed windows—often over 30 years old—can reduce heat loss by up to 15 %. French homeowners can finance these upgrades through MaPrimeRénov’, Certificats d’Économies d’Énergie, a reduced 5.5 % VAT rate and the eco‑PTZ loan, with aid of up to €150 per window. Improved insulation lowers heating costs and can increase property value.