Fitting an electric shower

An electric shower can make an ideal alternative if your bathroom layout is such that it will be difficult to install a conventional one. An electric shower contains powerful units to heat water as it passes through the device, and apart from this operative difference, it can be used with other bathroom accessories just like a normal shower.

As a functioning part of the bathroom suite, an electric shower will need to be connected directly to the rising main using a supply pipe of 15mm diameter. It will also have to be supplied with its own 30A electrical circuit that has an on-off switch mounted in the ceiling. This type of shower can of course be fitted directly into a shower enclosure because its casing will be waterproof.

There is a temperature stabiliser fitted into this type of shower that ensures that if there is a fluctuation in the mains pressure the temperature of the water coming out of the shower will remain constant. If the pressure drops below a certain level, there is a sensor in the shower unit that will cut off the powerful heating elements and prevent scalding water from coming out of the showerhead.

Switch off the water and electricity supplies before starting on this and then remove the shower unit’s cover. After screwing the shower unit into position on the wall of the shower cubicle, connect a feed pipe from the rising main to the shower inlet, and be sure to fit a stop valve to the supply pipe so that it can be isolated whenever necessary. Then connect a flexible shower hose with the water outlet.

On the electrical side, link a six sq mm two-core, earth cable to the unit’s terminals, and lead the other end to a 30A cord switch. Then, replace the unit cover, reinstate the water and electric supplies and check that it works.

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