Nordpeis Bergen stove sweeping

I've got a Nordpeis Bergen stove I'd like to sweep myself but it has a bar going across the flue outlet. It's secured by 2 nuts and bolts.
   The bolt is 10mm, but does anyone know the size and type of bolt on the top? None of the tools I have fit it, and the design makes it impossible to see it.
  Thanks in advance.


  • Why don't you try phoning 1st, the supplier; or 2nd, the company (which is Stovax in the UK) and ask? I find these folk are usually really helpful with technical questions. 
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