The ash is to be emptied from the ash drawer and fire chamber at regular intervals. In case of irregular emptying, an ash cone will build up in the ash drawer causing the shaking grate to clog from underneath.
This will hamper or prevent the supply of primary air and reduce cooling. Furthermore, the grate is likely to burn out or break.
The convection shafts, the smoke discharge above the heating gas deflection plate, and the smoke pipe of your chimney stove should be cleaned at least every twelve months.
The weeks after the heating period and after chimney cleaning are particularly suited for this purpose.
As regards cleaning the smoke discharge: Gently lift and remove the top vermiculite plate from the fire chamber backwall lining as well as the heating gas deflection plate located above. Brush off or extract any soot or dust residues.
Put back both the heating gas deflection plate and the vermiculite fire chamber backwall plate and make sure to properly fit them onto the fire chamber backwall.
As regards cleaning the smoke pipe / connection piece: Open flap on smoke pipe. Use flexible brush to clean smoke pipe.
Proper air supply provided, the glass panes of your chimney stove will be "rinsed", i.e. the secondary air flows over the glass panes and prevents potential soot particles to settle. However, sooting of the glass panes cannot be excluded altogether because there are several factors such as operation, chimney draft or wood properties which may cause sooting. Regular cleaning will be necessary in such cases.
If the glass panes of your chimney stove are sooted, make sure to clean them immediately in order to prevent soot particles from burning in during repeated use of the stove. To clean the glass panes, use a moist kitchen cloth and clear water. Sharp objects (e.g. glass-ceramic panel scraping tools), solvent based cleaners or abrasive detergent should not be used for cleaning of glass panes since such products are likely to cause damage.
When using oak wood, cleaning residues and/or extreme high combustion temperatures “whitish” residues may occur, which can´t be removed with classical cleaning methods. One possibility of removing these residues effectively is to use a ceran glass cleaner. Please ensure that the seals and other surfaces don´t get contact with the aggressive cleaner as they might get damaged.