[AT] OT - Old Chimney Question
Larry D. Goss
rlgoss at evansville.net
Sun Oct 24 12:13:33 PDT 2004
IMHO, Centennial was one of Michener's better stories. But he was
writing about an area that I always treated as my "second home" so I
probably have a prejudice toward liking the book for that reason. I
have a cousin who lives "just over the hill" from the twin buttes that
are referenced again and again in the story. When I visit with him and
his family, I keep asking if we can't go there to look them over. He
says they are NOT exactly tourist attractions. There seem to be
problems with mud and rattlesnakes. :-)
Larry
-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Kessen
Mattias (Road SE)
Sent: Sunday, October 24, 2004 12:32 PM
To: Antique tractor email discussion group
Subject: SV: [AT] OT - Old Chimney Question
>From what I understand they began building the fireplace and the
chimney and then builded everything else around it. Looks kind of funny
if you see a house on bad ground and the house has sunk a few inches but
not the rest.
When I was 13-14 or so I read every Michener book I could find but I
can't remember that book, I think I should try to pick it up.
/Mattias
-----Ursprungligt meddelande-----
Från: Larry D. Goss [mailto:rlgoss at evansville.net]
Skickat: fr 2004-10-22 21:27
Till: 'Antique tractor email discussion group'
Kopia:
Ämne: RE: [AT] OT - Old Chimney Question
What you're describing is very similar to the way houses were
built by
the German-Russian immigrants that came to this country in the
last
century, Mattias. Oops, I guess we've passed another century
mark -- it
happened back in the 1800's and very early 1900's. These were
Germans
who were enticed to settle on farms north of the Caspian Sea
(Volga
river region) during the reign of Catherine the Great. A
hundred and
fifty or so years later, they were essentially deported to the
United
States through Kaliningrad and/or Hamburg to Boston and New
York. They
then settled in the Dakota's and migrated north and south from
there.
You can find traces of their culture all the way from Colorado
up
through Alberta and Saskatchewan. My grandmother commented in
her
diaries about the arrival of their "Germans" whom they hired to
help
work the fields west of Longmont during the sugar beet harvest.
This
culture was also highlighted in "Centennial" by James Michener.
Larry
-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of
Kessen
Mattias (Road SE)
Sent: Friday, October 22, 2004 12:59 AM
To: Antique tractor email discussion group
Subject: SV: [AT] OT - Old Chimney Question
And, yes you
can successfully have more than one heat source feeding into the
same
flue and have all of them draw correctly regardless of which
ones happen
to be working.
Yes we do that every winter no problem. In all older small
houses round
here it's like that. Our chimney is probably pre 1840-50 since
it's
originally made for a big fireplace in the kitchen(only room at
least in
the winter) Then in the 1830's the oillamps appeared and made it
possibble to use stove without living in darkness all winter.
O.K. I
know that timeline isn't chronological but I don't suppose our
house was
one of the first in the country to get a kitchen stove ;-)
/Mattias
-----Ursprungligt meddelande-----
Från: Larry D. Goss [mailto:rlgoss at evansville.net]
Skickat: den 22 oktober 2004 03:22
Till: 'Antique tractor email discussion group'
Ämne: RE: [AT] OT - Old Chimney Question
Super heat and a "rip roaring fire" can make a marginal chimney
work,
but a well designed chimney doesn't need that. Ever.
Chimneys do indeed have a back draft. Even the pressurized ones
in
power plants act like super-sized pop bottles and "whistle".
The
frequency is so low that you can't hear it, but a monometer
placed
almost anywhere inside a flue will show cyclical variations in
air
pressure as the wind blows by. If you've ever watched the plume
off a
stack from any distance, you'll notice that it appears to wave
up and
down as it leaves the chimney. If you pay attention to any one
small
section of the plume, you'll notice that it proceeds in a
straight line
as soon as it leaves the chimney top. The waviness of the plume
is an
optical illusion based on the fact that the pressure inside the
stack is
constantly fluctuating and the smoke leaves at a different
vertical
speed depending on the internal pressure. Under some conditions
the
column of air heading out the stack will not just change its
upward
speed, but it will actually reverse as the chimney "whistles."
That's
when you get smoke inside the house. A smoke shelf (smoke
chamber)
helps because it effectively makes the chimney into a "stopped
flute"
much the same as the organ pipe of the same name. But making
sure the
top of the chimney is clear of the pressure fluctuations caused
by the
wind passing over the surface of your roof is also helpful for
exactly
the same reason as the fact that the pitot tube on an airplane
wing is
never mounted close to the wing surface.
This is more about chimneys than anyone probably wants to read,
but the
bottom line is that chimney design is not guesswork. You can
predict
ahead of time what certain changes in a flue will make. And,
yes you
can successfully have more than one heat source feeding into the
same
flue and have all of them draw correctly regardless of which
ones happen
to be working. There are guidelines to be followed for that. I
don't
know exactly where to turn for the complete instructions I
remember
seeing when I was a kid, but Better Homes and Gardens is one of
the
sources we used at that time. Their "Back To Basics" book came
out a
generation or so later and it gives some of the fundamentals,
but there
is a more comprehensive source somewhere.
Larry
-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of
DAVIESW739 at aol.com
Sent: Thursday, October 21, 2004 6:13 PM
To: at at lists.antique-tractor.com
Subject: Re: [AT] OT - Old Chimney Question
Heat is what causes the chimney to draw if you don't get it hot
enough
it
won't work. A small stove in a large chimney just won't do the
job.
Also
always start out with a good rip roaring fire to heat the
chimney then
cut it back
this will get things started and the smoke will go up not down.
A
longer
chimney won't work if you don't have enough heat to get it
working.
When I put my stove in my house in southern Oregon I had a 10 in
1
pitch and
the expert said that I needed to get the chimney up high enough
so that
the
wind wouldn't curl around and come back down the chimney, I
wonder
where he
learned that bunch of BS from. We had 80 mph winds up on that
hill I
don't
think they could curl around and blow back on themselves. Now if
the
wall was
straight up that would be another matter.
The main thing is to match the size of the chimney to the amount
or size
of
the stove to get proper heat rise from it. A good stove shop
should have
the
details for what you need.
Walt Davies
Cooper Hollow Farm
Monmouth, OR 97361
503 623-0460
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