Mick. wrote:
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.

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

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

Or is a separate electric shower unit the only way?

Hoping someone can advise me.

I think you'll be struggling with a gravity fed shower with such a low head.
You could probably add a pump although I'm not sure about adding one if
you've got a combined HW tank & header tank.

Tim