Straw Poll "Are you satisfied with hot water from a combi boiler"

Unless I have missed something, the sheds have gravitated (pun intentional) to sack weights of 25 kg for most products. Strangely, my local council have started to replace all the 300mm slab /paviors pavements with the old sizes which are far more likely to lead to skeleto-muscular problems in the workers. It does strike me as an extravagant way to get rid of the chewing gum. I wonder how big the bung was.

John Schmitt

Reply to
John Schmitt
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John you Spoilsport. You're just letting facts spoil Dribble's argument ;-)

On Planet Zog the gravitational constant is flexible depending on the level of the flood water and the mains gas pressure, so the HSE have come to a special arrangement to enable 2 man 170kg lifts to be fully legal.

Reply to
Matt

Do you have any hard facts? From my viewpoint large storage is on the way out. For me it's been out for the past 6 years. By trial and error and having tried to fit water systems in houses over the past 7 years, believe me, small quick recovery storage and instant water heating all in one case is certainly the future. Rinnais are selling very well, I have just ordered one, and Andrews and others rebadge them.

Reply to
timegoesby

I don't. I'm sure it's not at a constant 10 centigrade.

Reply to
timegoesby

No, you should know that fact never get in the way of a good drivel dribble...

And due to the variable laws of thermodynamics, can be hoisted into a loft by the expedient of adding a small hot air balloon on a string no doubt!

Reply to
John Rumm

But then you do this to sell houses - not to live in them.

Tell me, what do you have at home? Do you ever take baths?

Reply to
Dave Plowman (News)

That depth would be very considerable and certainly more than that used in the UK for mains.

ROTFL. Do you have any idea of how much storage and hence length would be needed to achieve that and the flow resistance involved?

32mm MDPE pipe has an inside diameter of 26mm.

To achieve the 300 litres needed to make a difference for your box of tricks, would involve 300,000 cc. volume

300000/(pi x 2.6^2) = 14126cm of pipe.

Over 140m......

You are joking of course......

Much better to get a proper storage system than to play around with this nonsense.

Reply to
Andy Hall

I have to deliver. It has to work and work well. I don't install B&Q combis and hope they don't notice.

I have a Gledhill Gulfsteam which is in the loft with the flue through the roof. It fills baths very well indeed on a 25mm blue water mains pipe.

Reply to
timegoesby

You like cold baths?

Reply to
Dave Plowman (News)

Richard Cranium here attempts wit......

Yes, that was it folks. More next time.

Reply to
Doctor Drivel

Good idea. Two blue pipes from the water meter and two into the house doing separate functions. Cheap to do. Less influence from one line to the other. If one is down the other is capped off at the meter and all runs on the one pipe, and no digging. Buildability.

Richard, you came up with a good idea but never knew it. Sad but true.

Reply to
Doctor Drivel

It is not, about 6 to 8 foot. A JCB can go down 21 foot.

No. The prime main in the street is deeper than that.

100 metre rolls are available.

yep.

300 litres?

Nope. The water from the prime deep main pipe is about 10C all the time. This coil ensures it stays at 10C. It will also instantly heat water being in such a long coil surrounded by warm earth.

Nope. Many coils have been installed around gardens and used to pre-heat and coil a house. Constant 10C in summer means you run it through an in-line copper duct battery. Cooling. In winter the cold air coming in is tempered by a 10C pre-heat battery. Quite common in the USA and Germany.

Reply to
Doctor Drivel

The best flowrate I've seen is the Keston Duet. However, it doesn't have an external casing to my knowledge, so isn't as pretty.

Christian.

Reply to
Christian McArdle

Good answer. A look on Ebay will tell you chain winch is very cheap. Bolt to the rafers and pull up. Boy some people here are dumb.

Reply to
Doctor Drivel

You are real thick at times. He wants a copper coil in there. Such a spamming saddo.

Reply to
Doctor Drivel

It is clear that the Duet and the ACV actually provide performance similar to separate box storage solutions. I'm sure I would have considered the ACV when I installed my system (WB/DPS Pandora), as its performance is within my required parameters. At the time, I rejected the Duet, (as I didn't want the hassle of unvented storage) and the other one box solutions were insufficiently specified (i.e. Powermax etc.) My requirement was to be able to fill baths at full mains flow rate, simulataneously with a shower.

My two main concerns with the ACV (had it been available at that time) would have been:

  1. Weight/bulk. It was hard enough getting the Pandora into the loft. Indeed, it almost got damaged in the process.
  2. Unvented cylinder. The unvented capacity is greater than that may be installed by non-competent persons.

Presumably there is a greater installation and maintenance cost as you need a certified person?

Christian.

Reply to
Christian McArdle

A closer look at the legislation may make you realise you can't just buy any old chain winch off ebay and deploy it in a commercial environment. In addition the application of a point load of 170kg plus the weight of a chain winch to a "rafter" could lead to some very serious problems - even worse if you bolt it to them as you suggest.

Back to the counter Dribble and sell some more copper tanks.

Reply to
Matt

The ACV is a re-work on the proven commercial Heatmasters. Very well thought out. It is narrower to get through domestic doors.

Possible to get it in the loft but a winch would be necessary.

The unvented aspect is the only drawback. I am not keen on unvented appliances because of the BBA certification and annual service.

I believe someone posted a video here of an unvenetd cylinder exploding.

Reply to
Doctor Drivel

Why have you answered? the post was directed at Dr Dribble. You're not Dribble in disguise are you?

Oh and yes I have the hard facts. In fact the disposal of the heaps of now redundant instant water heaters has led to questions in the Japanese Parliament. Fortunately they can see the sense in storage systems and are buying a huge proportion of copper tank output worldwide. Sad for the combi manufacturers but true.

Reply to
Matt

domestic.

You run a bar through a number of rafers to spead the weight. Boy you are dumb at times..........well all the time.

Combis, stainless stell and plastic pipes are taking over and you will be out of a job soon.

Reply to
Doctor Drivel

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