On Wednesday 19 May 2004 21:34, [EMAIL PROTECTED] wrote: > � � � � � � � � � � � � � � � � � � 2004 May 19 > RE �29846 > � � e-mail 29846 reports that gas is billed in kWh in the UK. > This is bad news. �In the US kWh is restricted to electricity only.
When it was changed from therms a few years ago they deliberately chose kWh to make comparisons easy with electricity prices. Not good SI, but I understand the rationale. ... > Note that gas energy is billed for its higher heating value. �That is > the energy delivered if all the water vapor is condensed to get out > the heat of vaporization. �Residential furnaces do not condense. Oh yes they do! Condensing boilers are sold in Europe as the most efficient way of heating. They become compulsory in the UK in a couple of years' time, I believe. -- Chris KEENAN UK Metric Assoc.: metric.org.uk
