OT(ish) - lies, damned lies and ballet dancers (Grauniad)

The Natural Philosopher scribbled

GB is the turnip's sock. Naughty

How many more is he running?

Shock horror, gruniad article that is technically illiterate...

Well those are all questionable...

The water usage of the shower will of course vary with the flow rate. 6 lpm is tad low for a decent shower - but 8 to 10 lpm would be rated as fairly good by most.

The average bath will use more than 80L - 100 to 120L is more common.

A power shower is unlikely to use 3x the water - unless you are talking about something with a giant soaker head and additional body jets. Most people use them to get back to a sensible shower in cases where the unpumped option is a crap one.

Well lets say their 60L is right[1], that's 240L/day (although 4 people showering every day is probably excessive for most houses). That makes

That's a pretty poor para really... I was not aware it was critical to keep global temperatures below 2C - that's going to need a bit of an ice age!

I can't be bothered to work out how they derived the CO2 figure.

Its on the low end of nearly ok IME. Its well in excess of what you will get out of an electric shower in the winter.

To be fair, when the combi is working flat out, that will be with a 35 deg temp lift - so you will be using its output at close to final temperature with very little cold added.

(assuming its a ~35kW combi)

The figure for a "normal" shower is low, and 15 is a bit high for power shower in many cases.

that gives nearer 8 lpm which is probably a better figure.

No, 60L from store, but getting on for 100L from the combi (most users will demand full output from the combi for bath filling - there is no real advantage to taking less than full unless you like running baths slowly!)

(i.e. set the combi water temp limit to 60, and it will not deliver water hotter than 60. However demand too much flow rate from it and that temp will fall)

If you take their figures, those could be plausible - but see above.

It won't be anything like that with gas at a quarter or less of the price per kWh than lekky.

Yes, but not by a huge amount.

The pressure requirement is straight forward. The flow rate however is not a measure of what the shower can deliver, but just ensuring there is little chance that other users in the house won't starve the shower of water, causing its flow rate supply to fall below that which it can deliver.

See:

You will note that the best electric shower will not even manage 5 lpm in the winter (assuming you want the water warm that is!)

Can't really see the logic unless you have a very poor mains pressure. Most areas will get at least 1 bar of mains pressure.

No, its *way* too high.

Assuming the cylinder is lagged is does not make much difference.

I would say, you can go down to 7 or 8 lpm, but yup ten is quite nice.

I find it easy to spend more than 10 mins...

I suspect you are narrower than some of us!

I find modern shallow baths are not deep enough to keep parts from sitting out of the water and getting chilly!

What about letting the hot water massage the aching limbs after a bit of hard DIY ;-)

That's the best! Super hot water, plenty of it...

I find I get headaches in the cold quite often that disappear in a hot shower to the upper parts.

That's why I've got a 1900x800 bath waiting to be fitted ... so I can get my knees down and lean back without causing a tidal wave.

Try a soaking tub.

No wonder the 'average bath' uses so much water! :-)

Poor wording on my part.

Shall I say that I find it hard to believe that my average shower would fill the bath. Hence some doubt over the derived figures.

As others have noted, the answer is to put the plug in and see if the bath overflows :-)

Although out bath is a "shower bath" which is wider in the shower area with a glass screen.

Stop watch seems a little anally retentive.

Cheers

Dave R

Hmmm... now wondering.

One of the reasons folks stay a long time in the shower is the effort it takes to soap and dance about to make sure the job is thorough enough. Bit like washing plates under a running tap. Long....

How about designing an automated shower machine on the water saving principles of a dishwasher? Sit in a box like thing and get blasted by spinning soap filled jets, followed by a rinse cycle.

Could also build in a sauna function....

Kickstarter?

Doesn?t work for the head. A shower does.

En el artículo , Adrian Caspersz escribió:

The Japanese have done it with toilets, so, scaled up a bit...

There a times when a long hot soak in the bath beats having a shower :-)

Shower gell dispenser and sponge? Wash the bits facing away from the shower head and then turn round. Mind, I use a 1200x800 shower rather than struggle in a bath.

En el artículo , Tim Lamb escribió:

Wet room. :)

Remembered to do this today.

The water didn't even cover the arches on top of my feet, let alone lap around my ankles.

Being aware of the test probably shortened the "dream time" under the shower but I don't think I can have a particularly high flow rate.

The time for flow rate measurement comes ever closer....

They haven't mentioned anything about how efective a shower and bath are. is a 10 miniute shower as effective as a 30 min bath ? I wouldn;t bother getting in the bath for less than 30 mins usually I'm in for at least an hour. And it's not as much fun farting in the shower as it is in the bath.

Long time since I've bought any newspaper, but are you implying there are others which are generally technically literate?

Am I? Damned if I knew that! Who is the Turnip?