"Tabby" wrote in message
...
On Nov 17, 8:59 pm, Count de Monet wrote:
Any suggestions for a wood construction workshop 4m x 3m size

The workshop is basically a large heavy duty shed with a UPVC door and
UPVC window with no internal insulation.

http://usera.ImageCave.com/Barneyrubble/wshop.jpg

Any ideas or suggestions welcome

All electric heating is 100% efficient. Insulate insulate insulate.

Heat pumps are more than 100% efficient when using electricity to heat, most
of the time.