The shower fitted to my bath taps has no hot water coming through shower only cold, hot water comes out of taps ok for bath.

Hi, Dunno what these guys are on about. Quite simply your bathroom is plumbed with the cold water on the main and the hot water coming from a hot water tank fed from a cold water tank in the attic. The cold water mains pressure is at anything from 1.5 to 2 bar ( A car tyre runs at about 3 bar! ) and the hot water from the tank runs at about 0.2 of a bar depending how much higher the attic tank is above the bath taps. When you turn on the cold tap you get a good pressure and when you turn on the hot tap you get pressure but nothing as great. When you put on the mixer, quite simply the pressure in the cold is so much higher than the hot it shoots the hot water back into the tank and you get a spray which is cold. You can fine tune the hot against cold but invariably you end up with so little cold coming through, the pressure at the shower head is abysmal. The only answer is to have a separate cold water feed to the bath tap directly from the tank in the attic and stick a twin shower pump on both the hot and cold. Pumps cost between £100 & £150 from B&Q and the fitting shouldn't be more than £120 ish unless you live in London, when it will cost a million pounds. Guy.

If you've got good pressure on cold coming out of the shower head then it is limescale encrusted in the hot side of your mixer unit every time.Install new mixer & scale inhibitor.

Hi, sound's like you have no head of pressure, I take it you have a conventional system, ( not a combi boiler ) you can fit a power shower, with it's own pump direct feed from hot water tank, or you could fully pump the whole hot water system straight from the hot water tank, these pump's are expensive, would advise a stuart turner for this, this would give you a very good hot water pressure all over the home, this is a good way of doing it, but you have to remember it will drain your hot water storage tank a lot faster, sometime's better to install a larger storage tank in larger house's. Hope this is helpfull. Kind regards Paul