In article ], Chris ]
writes

Interesting! Did it have any ventilation?
Construction details would be welcomed and appreciated.

I've just bought one called a "Joanna" which has a special grid so that
rats can't get in and has a special jacket to put round it for the very
cold parts of the year. Hopefully this will work really well!

--
Janet Tweedy
Dalmatian Telegraph
http://www.lancedal.demon.co.uk