Mick. coughed up some electrons that declared:

Hi all, I live in a ground floor all electric 1 bedroom flat.

I do have a bathroom with a short bath in it; if possible I would like to
have fitted a bath mixer tap with a shower hose fitting.



In the airing cupboard there is a cold water tank on top of an insulated
tank with an off peak immersion heater .

The top cold water tank is at the ceiling level.

Been there- house I was a kid in...

The hot tank below is at the top 4'2" from the floor.


This fact is not a factor in a standard open vented system - only the cold
tank height matters.


Could this have enough pressure to use a bath mixer tap with a shower hose
fitting?

Yes it does work - but fairly poorly.

We had an Aqualisa shower mixer in exactly that setup. It was OK for hair
washing sitting in the bath and you just about have a shower standing up
but it was poor.

Have you considered a shower pump - that's a standard solution to this
problem - pressurised the hot and cold feeds (the pumps are actually double
pumps with a common motor).

Cheers

Tim