Regarding bees in chimneys, Allen Dick wrote:
>
> 6 mesh hardware cloth should do the trick and reduce sparks, without
> restricting draft at all.
>
> BTW 5 mesh hardware cloth is often used as an exclude as bees can pass
> thru, leaving drones and queens behind.
 
In the particular case worrying me at present the problem is that I can't
easily get to the top.  It's a two story building with the chimney above
the ridge at one end.  Unfortunately I can't get a ladder in at a safe
angle to climb because of other buildings.  I'd need to erect
scaffolding.
 
--
Malcolm Roe                                Phone  :  +44 1442 345104
Crosfield Electronics Ltd                  Fax    :  +44 1442 343000
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