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UK RICS report says solar takes 208 years to repay...nonsense! Help needed! - Page 73

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Posted by Jim on October 16, 2007, 10:07 pm
 


    In the eastern US, I was spending quite a bit more than $00 US for
propane gas. Hot water is neither free or cheap, except in Iceland.


Posted by David Hansen on October 17, 2007, 7:31 am
 
On Tue, 16 Oct 2007 17:07:57 -0500 someone who may be "Jim"


Hot water is not free in Iceland. The hot water doesn't get into
buildings by magic and the heat exchanger in the house is not free
either. As a result the quantity of heat used is measured. I do
believe it is relatively cheap though, especially compared to the
cost of importing oil or gas.



--
  David Hansen, Edinburgh
 I will *always* explain revoked encryption keys, unless RIP prevents me
 http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

Posted by Mary Fisher on October 17, 2007, 8:45 am
 

And much is lost between source and destiny.

Great steel pipes run in open 'ditches' at the side of roads, they carry the
hot water. Much heat is lost to the atmosphere. Enclosing the pipes of
filling the ditches is pointless in earthquake areas, even the metalled
roads have only a thin skin of blacktop. Everything has to be repaired very
frequently ...


It is cheaper than ours (all our energy is probably higher than most places)
but the cost of labour, machinery and import of all raw materials has to be
paid for.

Mary



Posted by John Rumm on October 14, 2007, 5:20 pm
 Jonathan wrote:


It says on the graphic "hot water cylinder and pipework cover" - if this
involves lagging all the pipes in the house then the cost seems a little
low, when you consider all the making good that would be required after.


Close to 40 per valve with fitting I would have thought. So those alone
could easily be 500. Add a couple of hundred for converting to a fully
pumped operation and adding decent room and tank stats etc. So an OTT
assessment certainly - but could be as little as 2x - 3x


Could be right for some users. Much depends on if you have a usable roof
slope etc. Even if is saves you 100/year that would still be a 50 year
payback.

This is one of those things that can make much more sense if you can DIY
it as it brings the capital costs way down.


Somehow I doubt jo public with have any more trust in those
organisations particularly anyway.


I doubt it makes that  much difference really. You don't buy solar water
heating on a whim, it is something that you are going to have to analyse
carefully first. So your customers are going to come from the "detail
people" who are prepared to do the analysis. Just on personality types
alone that will limit you to about 20% of the populous in the first place.


--
Cheers,

John.

/=================================================================\
|          Internode Ltd -  http://www.internode.co.uk             |
|-----------------------------------------------------------------|
|        John Rumm - john(at)internode(dot)co(dot)uk              |
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Posted by Eeyore on October 14, 2007, 5:49 pm
 

John Rumm wrote:


Wouldn't you need to drain the system to fit them ?

Graham


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