You are currently viewing Do you have an interest in turning off your heating completely or lowering the temperature while you are away?

Do you have an interest in turning off your heating completely or lowering the temperature while you are away?

  • Post category:Economy News
  • Reading time:6 mins read

monenergie.beWith today’s high energy prices, you can save money this winter by working more often at the office again. But what to do with your heating at home in the meantime? Should you reduce its temperature and reactivate it in the evening or is it better to maintain a constant temperature? Stijn Verbeke, researcher at EnergyVille/VITO and the University of Antwerp, reviewed this for

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“In order to save energy, it is useful to temporarily lower the thermostat in most homes,” according to the expert. “By lowering your thermostat by a few degrees overnight (for example down to 16°C instead of 20°C in your living room, kitchen and bathroom), you can save an average of 4-5% on your energy bill. . If you lower your thermostat not only at night, but also during the day when no one is home, you can even reduce your consumption by about 10% compared to maintaining a constant temperature.

This simulation takes into account the fact that your heating device will have to temporarily provide a higher power in order to bring your home back to the desired temperature. “This higher power is temporary. During the cooler hours in your home, less heat has been lost through the building envelope and ventilation.

This more than compensates for the temporary additional heat demand during reheating,” according to Stijn Verbeke.

What about insulated homes and underfloor heating?

The researcher estimates that this effect will be less pronounced in well-insulated homes. “In this case, the good insulation and the airtight envelope of the building keep the heat inside better. In such dwellings, a period of a few hours is too limited to bring down the interior temperature considerably. Given that this energy bill is already significantly lower than the Belgian average, the savings of a few additional percentages by day or night reduction will remain quite limited.”

This same conclusion applies to underfloor heating. “Instead of heating the water in your radiator, you will be heating your entire floor. It is a very slow reacting system. Here, reducing day or night will not allow you to save energy and will disturb the system at most. If this system is connected to a heat pump and if you have solar panels (no inverter meter), you should not hesitate at all: financially, it is more advantageous to operate your heat pump during the day using self-generated electricity.

Pipe: The electric heat pump for new constructions: after how long will you be able to recover this investment?

An electric heater in your bathroom

For your bathroom, a (more expensive) electric space heater could be the solution. “Instead of setting your room thermostat to 24°C, you could set it to 18 or 20°C and only use a small electric ‘fire’ or fan heater when you go for a bath or shower,” according to the expert.

When you go on winter vacation, you can lower your thermostat further. “It is better not to let the temperature fall below 12°C in order to avoid humidity problems. You can set a programmable thermostat so that your home is pleasantly warm again when you return. If you have a separate system for domestic hot water, remember to turn it off!” Here you will find some additional tips for saving energy at home during your vacation.


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