Being a bit pedantic, albeit correct, heat doesn't rise. Heat can be conducted, radiated, or convected.
In this instance, Hot air rises. David -- I am using the free version of SPAMfighter. We are a community of 6 million users fighting spam. SPAMfighter has removed 485 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message
