Set Square wrote:
In an earlier contribution to this discussion,
Andy Hall wrote:


In short, the potable hot water argument for a combi in a domestic
situation is a very thin one.

I suppose that if you want a cup of tea in a hurry, you can fill the kettle
from the hot tap rather than the cold.

Many newer kettles have no problem boiling 130ml or so of water, in 20 secs
or so, from cold.
Hot wouldn't speed it up much.