"al" wrote in message
. uk...
The difficulty/expense of putting an electric shower in is proving too
much, so I'm looking at more creative options! Anyone got any experience
of venturi showers? I've seen one manufacturer claim that other designs
suffer from poor temperature control, particularly if you move the shower
head around whilst showering.

Is this true? Does it matter if the venturi valve is in the control unit
on the wall or on the shower head?

The Ideal Trevi Boost is good.