electric shower installation | fitting

An electrically heated shower, which heats the water as it is being delivered, is the easiest (and usually the cheapest) to install. In the electric shower installation the heater unit should be positioned so it can discharge into a bath, and perhaps a basin as well, so it can be used for hair washing too. Fix it to the wall according to the manufacturer’s instructions. Then connect it, by means of a T-joint, to the rising main. Run pipe from this T-joint to the heater, and connect up according to the manufacturer’s instructions. Carry out any final assembly, for example of the shower rose and flexible hose. The heater must then be wired up by a competent electrician. Although electric shower installation it is as easy as it sounds, the rising main should ensure that there is sufficient water pressure, the flow out of the rose of an electric shower is restricted by the heater.

 

electric shower installationIf you want a shower at a comfortable temperature, water can come out only as quickly as the heater can warm it. If you have a cheaper means of heating the domestic hot water especially if you have a radiator central heating system, your running costs would be lower with a shower unit fed from your existing hot and cold supply system. Most electric shower installer knows this, for a shower unit to work effectively off the hot cylinder and cold tank you must have a strong enough head of water probably at least 900 mm (3 ft). The greater the difference in height between the shower rose and the bottom of the cold tank, the better the flow of water.   lf you do not have such a head of water, consider residing the tank at a higher level or choose an electric shower, which will give a stronger flow than a shower unit with a poor head of water. A shower unit can take the place of the existing bath taps, in which case the installation is similar to that of a kitchen mixer tap. Or you could install a separate unit with its own supply. There is however, a caution to observe. A person might be taking a shower when somewhere else in the house someone turns on another tap causing what the plumber calls an auxiliary draw-off that reduces, or indeed might cut off entirely, the flow of water to the shower. If the auxiliary draw off is in the hot supply, then the bather gets a cold douche uncomfortable, but not too serious.

 

If the auxiliary draw-off is from a cold supply, however, scalding hot water might surge out of the rose (one of the advantages of an electric shower is that there can be no auxiliary draw-off). The way to prevent auxiliary draw-off in a shower unit is to choose one that is thermostatically controlled. These are expensive, but they ensure that the temperature of the flow remains constant. If the electric shower installation without such thermostatic control, give the unit its own direct cold supply from the cold storage tank. This will eliminate the most dangerous (scalding) type of auxiliary draw-off by ensuring the cold supply is never interrupted, the direct cold supply must be fixed low down in the side of the tank by means of a tank connector.