hi i need to instal a shower into my flat it has a conventional boiler which heats water to a cylinder and the water tank is on the roof about 4 floors up can i fit either mixer taps with a shower attachment or mixer valves like a aqua lisa valve will there be enough pressure for the shower to mix ok or do i need a electric shower :?
At 4 floors up no problem with pressure but can to get cold and hot water at the same pressure? If so thermostatic mixer tap will work OK. If not you may be limited to electric. But the size of electric cable required from you consumer unit it may be as easy to route hot water pressure cold water feed.