Contact Beaumont Technical Services:

Telephone : +44 (0)1392 427515
Mobile : 07836 561 002
E-mail : mib@beaumont-chimneys.co.uk
Postal : 14 Alexandra Terrace, Exeter, Devon, EX4 6SY

Contact Source Testing Association

Email: dave.curtis@s-t-a.org

Colour photography © 2005 David Willis
Email: willis@onetel.co.uk