Subject: Re: side draft hood

From: [email-masked]
Date: Fri, 09 Aug 1996 15:42:40 -0600

>As I recall, an early Anvils Ring had an article on side draft forges. Pre
>1990, but  I don't recall exact issue.
>
>Maybe someone else could help.
>
>Mark
>
Jerry Hoffman's Blacksmith Journal did too.

Mike George

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From: [email-masked] (Martha C. Fulwood)
Date: Sat, 10 Aug 1996 08:16:44 -0700

You wrote: 
>CLIP
>
>Yeah. This is what I use, too. With an approx. 13" round flue about
>12' tall on top, it draws ok except when the wind comes across the
>church across the street. Then the turbulence around my shop can make
>it draw backwards for 2 or 3 seconds at a time. Made the first one out
>of 16ga and it rusted out in about 10 or 12 years. The present one is
>a notch or two heavier. If I wuz a little brighter, I'd use stainless
>next time. :-)

  Buster Grubbs ([email-masked]) just built a new side draft 
for his shop from Stainless. It has a 14" Stainless chimney about 4 
foot higher than the roof of his shop.

  I had the pleasure of using it when I demonstrated at this month's 
meeting of The Ocmulgee Blacksmiths. The forge was built from the plans 
in Jerry Hoffmans Blacksmith's Journal. The only deviation from the 
plans was the use of the larger diameter 14" chimney pipe.

  Despite the fact that it sits in a shed building with one open wall, 
it drafts so well that no smoke stays in Buster's shop. I believe in a 
totally enclosed shop it might work even better if that is possible. 

  The edge of the firepot is about 2" from the front of the hood and 
fire is sucked horizontally into the hood. I think he could have moved 
the firepot back another 6-8" from the hood and it would have still 
worked sufficently.
                            See Y'all later,
                            Donnie Fulwood, Editor
                            OBG Newsletter

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From: Russell McCrackin <[email-masked]>
Date: Sat, 10 Aug 1996 22:52:03 -0700 (PDT)

>(Snip)
How high above the fire pot is the bottom of the hood, and how big is
the opening of the hood?  Need to build a new hood myself.

Rusty

Get it hot and hit it hard.

Never use force, get a bigger hammer.
 [email-masked]

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From: Russell McCrackin <[email-masked]>
Date: Tue, 20 Aug 1996 07:39:33 -0700 (PDT)

At 12:01 PM 8/19/96 EDT, you wrote:
>>>>  ...side draft chimney.  I had a sheet metal one made...
>>>
>>> it draw backwards for 2 or 3 seconds at a time.
>>
>>Mike,
>>Perhaps your chimney isn't tall enough? My brother had this problem...
>
>Likely so. But it's a funny configuration. My shop is a shed roof --
>pitch about 1:5 -- with fasle walls at the ends to make it look like a
>flat roofed building (except from the back). A hundred feet from one
>end is a church maybe 50' or 60' high with a maybe 90' steeple. When
>the wind blows from the church direction and over one of the false
>walls, what happens around my shop is somewhat bizarre,
>atmospheric-pressure-wise.  (When the wind is from the sea, I gotta
>lash the cat to the swage block or he gets sucked up the flue from
>clear across the room and the neighbors, accustomed to coal smoke,
>complain about the odor of singed cathair.:-)
>
>But yes, maybe an extra 3' or 6' would help. Or maybe not. But damn!
>Those 13" glass-lined water tanks have gone out of style and I dunno
>where I can get an extension! ;-)
>
>- Mike
>
>-- 
>Michael Spencer               (902) 543-8375
>[email-masked]
>URL: http://www.mit.edu:8001/people/mspencer/home.html
>---
>
>
Along the Oregon coast there always seems to be a breeze, and most chimneys
are topped with a weather vain hood that always has its opening on the
down wind side.  Wonder how that would work with a forge chimney in those
gusty areas.  The hoods seem to swing with the slightest change in breeze.

Rusty

 [email-masked]

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From: Russell McCrackin <[email-masked]>
Date: Tue, 20 Aug 1996 07:39:28 -0700 (PDT)

At 08:56 AM 8/12/96 -0500, you wrote:

>
>BAM had a workshop a couple years ago and we built 25 of these in one 
>weekend. It cost us about $200 counting fire pot and 15 feet of 12 
>inch pipe --
>
>(SNIP)
>
>                                                     If anyone is 
>interested, Lou Mueller made full size plans from Jerry's drawings, 
>with a few improvements along the way. My forge draws so well that I 
>can't put the fire out without blocking the opening. Stainless would 
>be a good idea. Mine is starting to rust out.
>-- 
>Jim McCarty
>Father Helias Forge
>Taos, MO
>Editor Rural Missouri Magazine
>Newsletter editor, Blacksmiths Association of Missouri
>
>³Foolish consistencies are the hobgoblins of little minds³
>
I would like a set of the plans if available.  Where do I order them from, and
how much $?

Rusty

 [email-masked]

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From: "Bodin, Jim" <[email-masked]>
Date: Tue, 20 Aug 1996 13:56:59 -0400

Thanks for the info on side draft hoods.  I'm interested in obtaining a 
copy of the prints Lou Mueller made.  Would someone please post his 
address or some way to contact him?  Thanks.

Jim Bodin

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From: [email-masked]
Date: Wed, 21 Aug 1996 15:43:08 -0600

>In a message dated 96-08-20 22:33:37 EDT, you write:
>
><<
> > Anyway the hood/chimney in the article was just a 10" black stovepipe
> > with a half moon shape cut out of the bottom on the side facing the
> > fire. The cut removes about half the diameter of the pipe and comes up
> > about 10". It sits right next to the firepot. This looked a lot
> > simpler than making that whole smoke shelf thing so I tried it. It
> > works GREAT.
>  >>
>Would this type work if it was 90 through the wall instead of the roof?
>Thanks

I think you are going to need some vertical pipe to get a draft going. Then
a short sideways move will work. Its way better to go straight up if you
can.

Bob Schade