On Sep 3, 2006, at 2:11 PM, James Newtons Massmind wrote:

> Just building our houses to use passive solar heating could make
> a huge difference. Mandate that all new houses use passive solar.

They should cut down all the nearby trees to increase efficiency
of the passive solar heating, too.  No wait - that interferes with
cooling (ie shade) in the summer!  I'm so confused :-(

I wonder how much energy would be saved just by upgrading old
houses to modern high-efficiency heating?  I mean, I live in a
relatively recently constructed area, and I'm sure much of the
heating pre-dates modern concerns about efficiency, and some
place are MUCH older.  Shucks, we looked at some houses back
when we were house-hunting that were heated by wood stoves...

(OTOH, what percentage of the population lives in houses...)

BillW

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