In article , Alan wrote:
About the only way to get a sensible price using leccky is with
a heat pump aircon unit. That way you can dump 4kW of heat into
the room for 1kW worth of electricity.


Why is this? I had assumed they'd be less efficent at heating than
a traditional heating element.

No, because you're using the electricity to drive the heat pump not to
provide the heat: the heat itself is being extracted from the outside
air (the reverse to running it in a/c mode during the summer).

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk
Free SEDBUK boiler database browser http://www.sda.co.uk/qsedbuk.htm
[Latest version QSEDBUK 1.10 released 4 April 2005]