On 24/12/16 15:35, T i m wrote:
So, if the element was just a single 30cm 10mm diameter 'loop' and was
rated at say 10kW, wouldn't the water around the element boil (and I'm
not sure how that would affect the energy transfer / efficiency)?

It would make it 100% efficient like it already was.

Christ almighty, the lefty****s here are displaying an amazing total
lack of understanding of the basic physics of heating, just like they do
in the real world...no wonder we have wind turbines with these ****s
voting for people like themselves in government.

Do you really care whether your tank reaches thermal equilibrium in 3
minutes or 4 minutes?