Trevor Appleton wrote:

I had two large sash windows and a fire door fullt open in the office
yesterday. Out on site today in my landrover I had both windows fully open
and was still too hot!!

but what is "hot" then for you? In my book anything below 25C doesn't
even come close to being hot... yesterday the thermometer barely touched
the 21C .. *sigh* .. Summer 2005...