Combi fans: is bigger better

[IMM]

Sort of. One can do CH down and one up giving easy zoning too.

It will do two as most showers are approx 7 to 8 litres/min.

[Andy Hall]

Yours might be.

Proper ones are twice that. 7-8lpm is down in the electric shower range.

.andy

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[IMM]

Like the majority of showers.

No. Irresponsible wasteful showers are like that. Mr Blair the other day has declared war on anti-eco people like you. So you are now out of order along with obese people. Mrs Thatcher declared war on single mothers. they were public enemy No. 1. The mother pushing her child down the street was the cause of all our ills, according to Thatcher.

Your knowledge of showers is near nil. That is sad. 7-8 in the electric range is at the top.

[Dave Plowman (News)]

Then most showers are pathetic.

[Dave Plowman (News)]

And your knowledge of why this is at the top of the range appears zero too.

[Bob Mannix]

I did look on the Hometec site but couldn't find the actual boiler you mentioned - what's it called? It would be expensive, I guess, as 22l/min is probably leading-edge for a combi.

I'm not actually in the market for one but it would be interesting to compare figures.

[Andy Hall]

I don't think so. Go away and take a look at some specifications of good quality shower equipment.

Well I suppose he has to do something to draw attention away from his party's shameful bill on hunting, and from that fact that he has an attention span of no more than 15 seconds. Yesterday in Parliament, he made a total fool of himself by not being able to remember a question asked by Michael Howard about hospital hygiene. He was even laughed at by his own party.

Then when asked about his thoughts on another eco-subject of how far food travels from point of production to use, he didn't know because nobody had prepared an answer for him. .

So I don't set any store by what Mr TB says or advises. THe man is way past his sell-by date.

When he pontificates on something, it is for effect and nothing more, and only when somebody else has prepared the material.

What a lot of nonsense.

Exactly. Who would ever claim that *any* electric shower gives good performance.

.andy

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[Andy Hall]

EH market the MAN Micromat boiler

is a very good boiler (I Have the system version), in that it modulates heat production down to 4kW, also controlling the pump and including analogue sensing for the DHW and CH to control modulation and weather compensation. Pricing is north of £1000.

There is a combi version (EC38S) with 46kW rating for DHW which is able to do 22lpm. However this is at a temperature rise of 30 degrees.

boilers are quoted at a dT of 35 degrees, so to normalise, this boiler would have an output of around 18lpm on the same scale.

.andy

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[IMM]

Fabulous bill. Killing for sport? Barbaric. No doubt that bargain hunters are also an equal blight on society.

That was the case. Mothers in push chairs were being victimised. They were public enemy No. 1.

< snip babble >

[Andy Hall]

Just for the record, I am by no means anti-eco, but I am anti eco-bullshit - i.e. things taken out of context and to ridiculous extremes, and especially when done just to make imagined fashionable points.

Very badly thought out, almost certainly impractical to implement.

The main issue is the huge waste of Parliamentary time and the inappropriate use of the Parliament Act.

Undoubtedly this will come back to haunt Mr TB and cronies and I am sure that it will be repealled anyway - probably before it comes into force.

I don't know that many mothers in push chairs. I guess that this is a Milton Keynes phenomenon, or perhaps you saw it in Eyebyeza.

.andy

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[Bob Mannix]

Ah. Many thanks.

Bob Mannix

[IMM]

The Alpha CB50 has a high flowrate and is wall mounted.

[Andy Hall]

The manufacturers quote 18lpm and since the maximum power rating is only 28kW, once the small 50 litre store is exhausted, it will drop to the typical 11lpm. Not very exciting at all.

.andy

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[Dave Plowman (News)]

The only electric shower I ever use is at my brother's house, and I find I spend longer washing in that than with my decent one at home. Which one uses more water - or energy - I'm not sure, and neither do I care.

[IMM]

It is exciting. It will do a shower and bath very well indeed, and "never" run out of hot water.

[Andy Hall]

Not really. Even with one of your puddle in the bottom baths, the store will just about make it when mixed with cold water. It won't do a decent sized bath.

After that it is down to 11lpm which equates to a mediochre shower.

As I said, not very exciting at all. Plus because it exceeds to limit for pressurised HW systems has to be professionally installed.

A linsey-woolsey product if ever I saw one.

.andy

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[IMM]

< snip mentalist drivel >

[Dave Plowman (News)]

Perhaps you might define your idea of hot water. Anything above ambient temperature, apparently.

Since you seem to approve of the idea of stored hot water in this case, why not do the job *properly* and have a store big enough for most needs? Perhaps it's too complicated to install, since you seem to love the one box approach. Even although it doesn't work properly.

[Pete C]

Hi,

That 18lpm is at 60°C though and the store is 60l, which is enough to fill a bath in 6 mins. What would you consider a reasonable flow rate for a shower?

cheers, Pete.

[Andy Hall]

That depends on the temperature of the cold water. If it's 5-8 degrees as it would be in the winter, you won't have put enough in before the store runs out.

Absolute minimum of 15lpm, preferably 20-25lpm per shower.

.andy

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