I have a mid- 90s Austroflamm Wega stove and the heat exchange cleaning rod broke. It is the kind that screws into the scraper and the rod broke at the threads. I can see a “nub” of threaded sticking out the back of the “scraper” so I think I can unscrew the nub and screw a new rod in. The only thing I can find online is a rod for a Breckwell stove— same length and threaded end, but probably not the right circumference for threaded end. Anyone know where I can source one for an old Austoflamm? Thanks.