Optimisation
In a gas- or electric-heated house, night setback usually saves energy. In a heat-pump home the effect can be the opposite, since the morning catch-up requires a higher flow temperature.
The concrete slab stores heat and reacts slowly. Night setback means the slab has to be heated at a higher temperature in the morning — cancelling out the saving. We recommend keeping a steady mode.
Radiators react quickly, so a 1–2 °C night setback can give a small saving without losing comfort. We don't recommend a larger setback.
No. A large setback forces a higher flow temperature in the morning and can trigger the backup heater.
Compare weekly consumption with a similar-weather week without the setback.
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