In summer, how much electricity do you use from the grid to heat your water by combining a thermodynamic water heater and solar panels?
How many thefts and burglaries were recorded in Belgium per 100,000 inhabitants between 2017 and 2019?
What is the increase in energy consumption due to 1 mm of limescale?
With an air-to-air heat pump, what temperature could you get inside if it's 40 °C outside?