History
added HeatQuantity
2011-05-04, by Wimpie [Wed, 04 May 2011 20:15:25 +0000] rev 4
added HeatQuantity
2011-04-17, by Wimpie [Sun, 17 Apr 2011 17:25:56 +0000] rev 3
2010-12-31, by Wimpie [Fri, 31 Dec 2010 13:52:58 +0000] rev 2
negative values
2010-12-30, by Wimpie [Thu, 30 Dec 2010 18:04:45 +0000] rev 1
negative values