It has been found that if installed or serviced incorrectly, the boiler's safety can be impaired. An easy to fit kit devise by Potterton Myson Ltd. for only fanned flue boilers (not conventional or balanced flue types) is available.
Contact Potterton Myson Service Operations, Freepost CV2767, Warwick, CV34 4BR. Telephone: 0800 801 919
(Published in the Observer newspaper - 20 February 1993)