You could probably get passive cooling with a wind-catcher & attic
ventilation, especially if you have good insulation between the attic
and the rest of the house. Wind-catchers don't have to use evaporative
cooling ... they can, but they don't have to.
On 2/13/2017 11:26 PM, Alan C wrote:
Paul & PJ, thanks for that.
I know about those & some people here have tried them. Unfortunately they
are better suited to arid, hot areas like the Middle East where
they are built into the flat roofed houses with a small air space above the
ceiling. When used in high humidity , low rainfall places like here they
do have some cooling effect but actually increase the humidity thereby
reducing their own effectiveness. I have seen one here where the
evaporative
blinds were actually rotten with mildew. We have experimented with a towel
(with its lower end in a basin of water) draped over a fan, a sort of home
brew evaporative cooler with limited success.
By the middle of March the worst should be over.
Alan C
-----Original Message----- From: P. J. Alling
Sent: Monday, February 13, 2017 9:47 PM
To: Pentax-Discuss Mail List
Subject: Re: Weather Out of Whack!
I've experienced swamp coolers in temperate climates, and they're what
I'd call marginally ineffective. Better than nothing but not much. In
a desert they work a bit better but mostly at hydrating the air. Unless
you have cold water they don't really seem cool anything.
On 2/13/2017 10:28 AM, Paul in MKE wrote:
Alan -
Would a swamp cooler work for you? Much less expensive to purchase
and operate compared to conventional A/C.
https://en.wikipedia.org/wiki/Evaporative_cooler
-p
On 2/13/2017 9:07 AM, Alan C wrote:
40°C+ is hardly exciting, in fact totally debilitating. At the moment
our house doesn't even cool below 30°C at night. The pitched roof
houses the mines built here are totally unsuited to the Lowveld
climate with that huge mass of hot air above the ceiling (very nice
in "winter", mind you). Flat roofed houses like those in the Middle
East & Mexico would be much better. Unfortunately, Aircons are too
expensive to run for hours on end so we have to make do with fans. It
would probably be better to sleep outside under a mosquito net. A
couple of good rain storms would help a lot but they never seem to
get here. Just heard there is a cyclone in the Mozambique Channel so
we may be lucky yet.
Alan C
-----Original Message----- From: ann sanfedele
Sent: Monday, February 13, 2017 3:42 PM
To: Pentax-Discuss Mail List
Subject: Re: OT: Weather Out of Whack!
New York is so boring - just normal winter temps - 35° F (for those of
you who care I researched to find that ALT 248 = °. I love alt codes)
However, the extra strong wind gusts predicted today may lift us out of
the ordinary..
some scary stuff in California -
ann
On 2/13/2017 2:16 AM, mike wilson wrote:
Someone I know from the Perth hills in Australia was going to go for
a ride the
other day but:
http://i978.photobucket.com/albums/ae266/GU221/fasdegsbn_1.jpg
That's 55degrees Centigrade (131 in Funnymoney) so he decided to
wait until
evening.
Here, it's dead normal February weather. ~0degrees, leaden skies
(for weeks,
seemingly) and perpetual drizzle/sleet. I think I need vitamin D
injections.
On 13 February 2017 at 02:45 John <[email protected]> wrote:
It was 80 deg F here in Raleigh today. That's 5 deg higher than the
old
record.
Normal High temperatures for February are around 54 deg F.
Temps are falling off now. It should be 40 deg overnight.
By Wednesday they're calling for a high of 52 deg F, more like regular
temperatures, but they're also calling for it to be back up to 70
deg F
by the weekend.
I just don't know what to think.
--
Science - Questions we may never find answers for.
Religion - Answers we must never question.
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