last august there was a big fire in a tower block caused by a tumble dryer . took 120 firefighters to control

apparently :

Whirlpool has written to 3.8 million owners of the affected dryers, but as many as 2.4 million have not responded. The company has written to them again, offering to repair their machines.

thats 2.4 million potential fires doesn`t bear thinking about does it .

http://www.bbc.co.uk/news/business-39052979#_=_