to restarting, reheating requires a great deal of energy. The boiler must run at full capacity to compensate for the heat loss, which partially negates the savings achieved during the night.
The right approach: lower the temperature by 2 to 3°C, rather than turning the system off completely.
Low-inertia electric radiators and convectors
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These units respond very quickly, making a nighttime temperature reduction particularly cost-effective. They raise the temperature rapidly when they “wake up,” without excessive energy consumption.
The right approach: set a gentle, lower