On Sun, 08 Aug 2004 19:20:04 +0100, Broadback
wrote:

The pressure output of an electric show is proportional to the wattage
of the heating element. True or false?

Not directly - it is closer to the flow output.

A given rating of shower will be able to heat a certain volume of
water from one temperature to another in a given time.

Thus, the greater the power rating of the shower for a given input
water temperature, the greater the flow rate can be for a given output
temperature.


My daughter has a 8.5kw shower, and it is like standing under a faulty
watering can.

Yes they are, and that is on a good day. In the winter it will be
worse.


My shower runs direct off the combi boiler, and as our
pressure is good so is the shower.

This is because the boiler is able to deliver 2 - 5 times the 8.5kW
figure that you mention above.



What is the highest wattage electric shower available, and how powerful
are they?

For general domestic use, around 10kW, so hardly an improvement.

It is very easy to predict the results and this is not a worthwhile
upgrade.



I've tried a google search but many suppliers don't state the
wattage. I can find no supplier either in Stoke on Trent or Manchester
who actually demonstrate showers, a bit like buying a pig in the poke
methinks.

Any help or ideas most welcome

Go for something other than an electric shower. They are
disappointing in comparison to pretty much anything else.



..andy

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