DIYbanter - View Single Post

wrote:

No idea about first two Q's.

Why isnt this a common arragement? I realise todays lec showers arent
designed for this, but with a suitable model it looks like a sound idea
at first whatnot.

Displaying a lack of any knowledge here, my complete guesses are...

I reckon, cost (TCO-buy/install/run/maintain) would be a big factor ...
two devices doing the same job would cost twice as much (approx).

Pressure issues (esp. in low pressure area) two seperate heating devices
would probably result in less pressure at the head (each has to have a
pressure drop right?).

With added complexity you also decrease the overall system MTBF ...
might be a non issue in practice though.

.... but maybe a combi with an integrated electric "boost" might work and
is essentially the same thing and eliminates some of the
install/maintain costs.

Alex.