When you first sign up with Vaanster, we estimate your heating and/or hot water consumption. Each month, you pay an advance based on your estimated annual usage. At the end of the year, we calculate your actual consumption and costs. If the initial estimate was too low or if you used more heat, you might have to pay extra.

For the new year, we reassess your annual usage based on the previous year's data and/or your home's size. We automatically adjust the advance payment accordingly.

You can always view and adjust your new advance payment on Mijn Vaanster. Go to 'my details' and look under 'my contracts' for your advance payment.