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Combined electric power shower units?

(5 Posts)
Unexpected Fri 21-Feb-14 10:46:59

We are looking at installing an electric shower unit into a flat we own. DH seems to think we will need one of those units plus a separate unit to boost the water pressure, such as we have in our current house. I have seen Triton combined units which say they do 2 in 1. Has anyone ever used one of these? As we will probably rent the flat, it is more important to us that we get something which works long-term, rather than something which saves a bit of money up front.

PigletJohn Fri 21-Feb-14 12:37:14

do you mean a shower which connects to the cold water supply at mains pressure, and heats it?

they are very weedy. The more water you put through them the less hot it will be.

Will the flat have a gas boiler?

GoodnessIsThatTheTime Fri 21-Feb-14 12:38:42

We have a triton electric shower
It's weedy but works.

We dont have gas so don't have a lot of choice!

Unexpected Fri 21-Feb-14 15:00:43

Yes Piglet John, that is what I mean. Are they really still as useless as they were years ago? Sadly no gas supply in the flat so we are stuck with electric - and storage heaters, although buying some new fan-assisted ones.

PigletJohn Fri 21-Feb-14 15:15:09

a certain amount of electricity can only warm a certain amount of water by a certain heat rise. So if you double the flow of water the temperature rise halves. Hence electric showers give a weedy flow and/or lukewarm water.

It is especially noticeable in winter when the incoming water is very cold.

Depending on the age of your flat you might have an 80Amp main fuse, but it could be less, or, rarely, more. The amperage available at your electricity meter, and the cable sizes therefrom, will limit the power that you can have in your electric shower. Look at what is written on the main use (probably black or grey) though it may not be accurate, the fuse inside could be lower rated.

Measure the water flow in the bathroom by running the cold tap into a bucket, time it to full, calculate litres per minute.

Is the hot water for the other taps heated in a cylinder? What colour is it? What size? There may be scope to improve it. Measure the lpm at the hot taps as well.

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