| Topic: |
Science > Physics |
| User: |
"W. Watson" |
| Date: |
16 Sep 2006 09:48:07 AM |
| Object: |
Window Blinds, Heat and Cold |
On hot days we often pull the shades on windows to keep the sun out and
heating down. Yesterday we had a big dip in temperature. Typically these
days the night temp is around 66-70. It was near to 50. Last night my wife
pulled down all the shades to keep the heat in. Somehow I don't think this
is as effective as keeping the heat from the sun in. Comments?
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
--
"I have made a ceaseless effort not to ridicule, not to bewail,
not to scorn human actions, but to understand them."
-—Baruch Spinoza
Web Page: <home.earthlink.net/~mtnviews>
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| User: "Sorcerer" |
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| Title: Re: Window Blinds, Heat and Cold |
16 Sep 2006 10:00:54 AM |
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I had a girlfriend who opened the windows when it got hot indoors
to let the heat in. The same mentality applied to the thermostat,
she'd crank it up in winter and down in summer, when all it needed
was to be left alone. The relationship was short-lived.
"W. Watson" <wolf_tracks@invalid.com> wrote in message
news:H8UOg.12412$bM.5234@newsread4.news.pas.earthlink.net...
| On hot days we often pull the shades on windows to keep the sun out and
| heating down. Yesterday we had a big dip in temperature. Typically these
| days the night temp is around 66-70. It was near to 50. Last night my wife
| pulled down all the shades to keep the heat in. Somehow I don't think this
| is as effective as keeping the heat from the sun in. Comments?
|
| Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
| (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
| Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
| --
|
| "I have made a ceaseless effort not to ridicule, not to bewail,
| not to scorn human actions, but to understand them."
| -—Baruch Spinoza
|
| Web Page: <home.earthlink.net/~mtnviews>
|
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| User: "Panties On Head" |
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| Title: Re: Window Blinds, Heat and Cold |
16 Sep 2006 10:38:43 AM |
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I had a girlfriend who was quite hot regardless of the temperature. She
could have been a hood ornament model.
But yeah, window shades probably insulate better during the day than the
night because during the daytime you have light energy coming in, but at
night there is'nt alot of outbound radiation. Heat is mostly lost by
convection.
But I'll never forget the guy who's wife insisted on leaving storm windows
open all the time, his house was only about 2 years old and his window
paynes were all completely rotted out. Brand new 1/2 million $ house. The
windows were made from some shitty wood - not like the old days when
carpenters knew what the hell they were doing - and the guy's house was
falling apart like wet cardboard.
And THAT is the scarriest part of the US real estate bubble - people are
paying too much for houses which are being built with crappy materials.
After the valuation bubble bursts the house will all start to disintegrate.
Can you say "suburban slum" ?
I had a girlfriend who opened the windows when it got hot indoors
to let the heat in. The same mentality applied to the thermostat,
she'd crank it up in winter and down in summer, when all it needed
was to be left alone. The relationship was short-lived.
"W. Watson" <wolf_tracks@invalid.com> wrote in message
news:H8UOg.12412$bM.5234@newsread4.news.pas.earthlink.net...
| On hot days we often pull the shades on windows to keep the sun out and
| heating down. Yesterday we had a big dip in temperature. Typically these
| days the night temp is around 66-70. It was near to 50. Last night my
wife
| pulled down all the shades to keep the heat in. Somehow I don't think
this
| is as effective as keeping the heat from the sun in. Comments?
|
| Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
| (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
| Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
| --
|
| "I have made a ceaseless effort not to ridicule, not to bewail,
| not to scorn human actions, but to understand them."
| --Baruch Spinoza
|
| Web Page: <home.earthlink.net/~mtnviews>
|
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| User: "Sam Wormley" |
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| Title: Re: Window Blinds, Heat and Cold |
16 Sep 2006 12:35:20 PM |
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W. Watson wrote:
On hot days we often pull the shades on windows to keep the sun out and
heating down. Yesterday we had a big dip in temperature. Typically these
days the night temp is around 66-70. It was near to 50. Last night my
wife pulled down all the shades to keep the heat in. Somehow I don't
think this is as effective as keeping the heat from the sun in. Comments?
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
Air between shades and window acts as a thermal insulator.
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| User: "W. Watson" |
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| Title: Re: Window Blinds, Heat and Cold |
17 Sep 2006 04:00:04 AM |
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Sam Wormley wrote:
W. Watson wrote:
On hot days we often pull the shades on windows to keep the sun out
and heating down. Yesterday we had a big dip in temperature. Typically
these days the night temp is around 66-70. It was near to 50. Last
night my wife pulled down all the shades to keep the heat in. Somehow
I don't think this is as effective as keeping the heat from the sun
in. Comments?
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
Air between shades and window acts as a thermal insulator.
Here's a bit of info from Consumer Guide to Home Energy Savings at
<http://www.aceee.org/consumerguide/buttonup.htm>:
Finally, you can boost the energy efficiency of windows by installing
insulating curtains or drapes on the interior. These can be closed at night
to significantly cut down on heat loss. They can also be closed on hot
summer days to keep out unwanted heat gain.
I would think plastic/metallic blinds would not provide enough insulation to
be effective.
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
--
"I have made a ceaseless effort not to ridicule, not to bewail,
not to scorn human actions, but to understand them."
-—Baruch Spinoza
Web Page: <home.earthlink.net/~mtnviews>
.
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| User: "Sorcerer" |
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| Title: Re: Window Blinds, Heat and Cold |
17 Sep 2006 07:14:59 AM |
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"W. Watson" <wolf_tracks@invalid.com> wrote in message
news:o88Pg.12689$bM.5692@newsread4.news.pas.earthlink.net...
| Sam Wormley wrote:
|
| > W. Watson wrote:
| >
| >> On hot days we often pull the shades on windows to keep the sun out
| >> and heating down. Yesterday we had a big dip in temperature. Typically
| >> these days the night temp is around 66-70. It was near to 50. Last
| >> night my wife pulled down all the shades to keep the heat in. Somehow
| >> I don't think this is as effective as keeping the heat from the sun
| >> in. Comments?
| >>
| >> Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
| >> (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
| >> Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
| >
| >
| >
| > Air between shades and window acts as a thermal insulator.
| Here's a bit of info from Consumer Guide to Home Energy Savings at
| <http://www.aceee.org/consumerguide/buttonup.htm>:
| Finally, you can boost the energy efficiency of windows by installing
| insulating curtains or drapes on the interior. These can be closed at
night
| to significantly cut down on heat loss. They can also be closed on hot
| summer days to keep out unwanted heat gain.
|
| I would think plastic/metallic blinds would not provide enough insulation
to
| be effective.
I would think a scientist would investigate before running off at the mouth,
but that's just my opinion, I would think. I wonder why your opinion
is better than the Consumer Guide to Home Energy Savings...err..
no, I don't. I know an argumentative idiot when I see one.
Have a nice adventurous day, *****. Don't all us, we'll call you.
*plonk*
Androcles
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