On Sat, 24 Dec 2016 15:47:04 +0200, The Natural Philosopher
wrote:

snip arrogant TNP left-brain thinking

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

1) I didn't post the question.

2) I don't have a hot water cylinder

3) I understand that people (other than you) can have such 'right
brained' discussions.

4) You aren't obliged to join in.

Cheers, T i m