Due to having shite water pressure in the house we have a gravity system in place with the Water Tank in the loft.
I have a timer to set the water come on each day for what I have worked out is just the right amount of water for the days use.

I am used to Combi Boilers but it is a no no. I am sure that a solution does exist but it is the cost of replacing the current boiler.

So, I was interested to see Screfix had these on offer yesterday for £90 (back to full price now!) http://www.screwfix.com/p/galaxy-gap..._-Hero1-_-DOTD

Has anyone used/got one? If I was to put it in the bathroom, under the bath I guess, would it suffice to provide hot water for the Shower and sink in there or are they a waste of time/expensive to run?

I should add I do not want to fit an electric shower. They are ugly things.