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bacon_cake t1_ivfv5cy wrote

Reply to comment by ahuli12 in Is my power shower positioned too low on the wall? by sudzikle

An electric shower pump for houses with lower pressure.

Edit: No it's not, see comment by /u/RodneyRabbit

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RodneyRabbit t1_ivgftqr wrote

No it's not, it's an electric shower unit that can only be used with high pressure water. There is no pump inside, just a constant rated water heater (normally 7.5 - 10.5kW) where the temperature is increased by slowing the water flow through the heater. That's why they normally need pressure at least 1 bar which normally means mains water pressure or a tank 10m above.

Most people here get mixed up between plain electric showers (which this is) and actual power showers (which have pumps / mixers / controllers hidden away and therefore no visible equipment on the wall except taps and shower head).

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Tardwater t1_ivghx3p wrote

Oh I love the concept of being in a tiny wet room with a 10kW heating element.

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RodneyRabbit t1_ivgk6n5 wrote

They are quite common here and I never heard of anyone getting zapped.

Mine is 10.5kW and on its own wiring run with a dedicated 45A breaker. A pumped power shower would still likely have an electric pump on a 30A breaker if it's on the wiring ring used for regular sockets. Both types must be used with an RCD. I think in both cases we're a damaged seal away from potentially similar dangers.

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GoArray t1_ivgncji wrote

So basically, a point of use water heater?

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RodneyRabbit t1_ivgowm3 wrote

Yeah that's it, basically the same concept. Actually a lot of the smaller wall mounted ones look just like those showers but with a metal spout and obviously lower flow rate. I don't think the water heaters are that popular here, but the showers are.

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