"Guy King" wrote in message
...
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from contains these words:

What do you mean by the showerhead being "scaled up"? Does that mean
it's designed to in some way reduce flow? It's certainly a pretty poor
shower head.

Clogged with limescale. Try unscrewing the handset completely and see if
the temperature's stable then.

--
Skipweasel
Pay no attention to the man behind the curtain.


You will find the temperature is lower as you have removed a significant
flow restriction. The holes block with limescale when the water dries off.

Remember - the temperature is a factor of:
1. The electrical power.
2. The rate of water flow over the elements. (Slow it down and it becomes
hotter - too slow and it will trip off)