Oslo owners will certainly be aware of the nuisance I'm referring to! It's the 'poor' design of the front door. The ash gathers in the groove between the door and the stove. When you open the door (I only do this to clean the glass) lots of ash falls on your ashlip and your hearth. It's a pain in the neck to clean up - plus the nice black cast iron turns a ugly grey colour! The solution: Lay a piece of rope gasket in the groove - I'm using 5/8 inch rope. Don't force it in - just lay it into the groove. When you want to clean the glass, brush away the ash from the rope and pull it out! Open the door, and voila -next to no ash to clean up. It's simple and it works - just the way I like it!