For a long service life and perfect function, we recommend regular, preferably annual maintenance. If you want to put this in the hands of your specialist dealer, it is best to commission him "anti-cyclically" at the end of the heating season in spring or summer. At the beginning of the heating season, many stove owners get this idea - delivery times for spare parts and fully booked customer services are sometimes the result.
Maintenance is usually limited to checking and, if necessary, replacing the seals and greasing (e.g. with heat-resistant copper paste) the moving parts.
In addition, your chimney sweep must of course clean the flue gas passages - it is best to discuss the necessary cleaning interval with him personally depending on your heating behaviour.