Quote:
Originally Posted by Ken W
Shower wattage
what is the recomended wattage for electric shower, search ther are wattage from 9 kw to 11 kw
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If you want a hot shower with good water flow, then the recommendation is as high as you can afford.
With an electric shower, the higher the wattage, the quicker it heats the water. When you turn the temperature knob on an electric shower, you aren’t changing the power consumption, you’re changing the water flow. So a high wattage shower will produce a hotter shower than a lower wattage one for the same quantity of water flowing through it.
(Caveat, some showers also have a high/low/cold dial in addition to the main temperature knob - these do indeed alter the shower’s power consumption).
Things to consider:
- If you have particularly poor water pressure, then a high wattage shower is a waste of money because it will overheat too easily.
- If your cold supply is particularly cold in winter (perhaps if the rising main is quite exposed) then a high wattage shower will be particularly useful because the shower will have to work harder to heat your water.
- Your electrical installation must be up to spec. You need 10 or 16mm cable back to the consumer unit, as you would for an electric range cooker, and for a high wattage shower (more than 10kW) you need a dedicated 60 amp mini circuit breaker on the consumer unit to protect it.
As this is an installation in wet conditions you must get a qualified electrician to do the work.