I noticed wet rust on the flag beneath my log burner. On further inspection, the door in front of the dustpan is rusty, as is the dustpan. In fact I don't think the pan would move if I tried. It's rusted to the part it fits into. Whether there is rust elsewhere I don't know. I'm just going by what I can see. Is this something which can be repaired? The company I bought it from is no longer in business. This also applies to Euroheat. Many thanks.