I tried this radiator trick from France, my heating costs dropped dramatically.

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I tried this radiator trick from France, my heating costs dropped dramatically.

Stars (2 / 1) 10.02.2026 13:08 / Frank


How to implement it - and what else helps

The installation is straightforward, it leaves no permanent traces and is unproblematic for tenants. As an additional measure, smart thermostats can help; users report savings of up to 100 euros per year.