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Posted by News on May 23, 2004, 2:45 pm

What is his URL?

Posted by News on May 23, 2004, 6:48 pm


Did a Google and got it.

He asked many question on this ng before finalising his full solar house
design.  With tons of water and concrete in the roof.  The cost of the
structure to hold this weight may be prohibitive.

Posted by News on May 31, 2004, 5:49 pm

I have been looking at this web site and the design.

- It would have to be built of concrete to give the thermal mass to retain
the heat captured.

- The structure would have to be very strong, and expensive, to hold all
that thermal mass up top of concrete blocks and water.

- The aim is ton retain heat in the upper part of the walls and ceiling,
which will "radiate" down.  More hope here than knowing it will work.

A light framed highly insulated structure could be built much cheaper than
the high mass one here.

* Have all of the south facing roof being a solar panel heating water from
the sun.  That is a large surface.

* Store the heat in large thermal store(s), which would have to be sized to

* The heavy thermal stores can be at ground level. they could be in a
separate building with superinsulted underground pipes between it and the

* Use very low temperature underfloor hydronic heating in the house.

* In winter not a lot of very hot water will be generated, but hot enough
for very low temp underfloor heating.

* This low temperature water can act as a preheat for domestic hot water.

* If hot water is generated hot enough for domestic hot water then this
water should be suitably stored for ready use rather than merging into a
large low temperature water store.

* The controls will be off the shelf and all be using the odd pump here and

* A backup heat source can be incorporated when cloudy days extend over 3 or
4 days.

* The water system is understandable by any intelligent plumber.

This will achieve the same and be far cheaper and most certainly more
effective in comfort conditions.

Posted by nicksanspam on June 1, 2004, 10:49 am

A slow-moving ceiling fan could help.

Wrong, in this case.

Wrong, in this case.

Wrong, in this case.

Wrong, in this case.

Wrong, in this case.

Wrong, in this case.

Wrong, in this case.

Wrong, in this case.

See how easy it is to have opinions without numbers? :-)


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and 20 decades of experience simply using the sun.

Join solar guru Steve Baer and PE Drew Gillett and PhD Rich Komp and
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Posted by News on June 1, 2004, 3:34 pm
Well high thermal mass material, not necessarily concrete.

Well more expensive than a light framed building that is for sure.

"could" is the word.  More like a wet finger the air here.

I can't speak for around your parts.

No, right.

No, right.

No, right.  The ground is not expensive to hold heavy objects.

Right in my case.

Right in my case.

It can be used as pre-heat.

Right in my case.

Right in my case.

Right in my case.

Right in my case.

Right in my case.

Nick, number only assist. They are not everything in themselves.  First get
the concept right and then apply numbers.

The problem with the this air system is that it is not proven. It is also
relies on natural circulation.  More than a hint of wet finger in the air
about much of it.

The structure would need to be strong enough to hold all that tonnage of
thermal mass, which does result in a more expensive structure.  Don't have
your thermal mass up top, have it down below in solid ground - much cheaper.

Water holds more heat, is easily transported around a house, easily stored
and great as a heat distribution medium.  All win, win, there.  I don't need
numbers to know that.

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