"Grumps" wrote in message
...
mike wrote:
"Steve" wrote in
:



My trusty good-old Triton T80si 9.5kW *electric* shower suffers from
no such duty cycle.

Ditto my triton T90si pumped electric 10.5.

I can't imagine what this duty cycles about, for a power shower,
unless it uses all the hot water in 15 mins, and needs 45 mins to
heat up again.

An electric shower will give me a shower of unlimited length within
30 secs of getting in the door, whether the DHWs hot or not

And that is a selling point?!
You need an unlimited duration shower to deliver enough water to wash in.
hard hat and ear defenders on

don't be daft.