[TheForge] Stack Cover

[James Binnion]

On Nov 22, 2006, at 2:04 PM, Chris Worsley wrote:

> Marsha,
> When I was burning coal, I had a cap on the top of the pipe that  
> was made for a fireplace I think. It was big, closed on top and had  
> lots of openings around the sides and lined with screen to stop  
> sparks. Since I had a big sqiurrel cage furnace blower in the line  
> above the hood, I had no problem getting smoke out!  Never had a  
> drop of rain get in thru that cap partly because it was so wide.
>
> Darrylls idea is good if there is not a "no wind frog strangling  
> downpour" going on. I should think his adaptation needs a little  
> wind, anything but straight down rain. (You'd use a 10" piece 4'  
> long. Remove the cap)
> To try to make it a little clearer:
> Put a drinking glass on the table, with you holding a straight  
> sided pitcher upside down over it with the pitcher's open end  
> overlapping the top of the glass. (the top of the glass just inside  
> the pitcher)
> Now cut off the bottom of the glass and the bottom of the pitcher,  
> and you have two vertical tubes, one barely inside the other. As  
> long as the rain comes down at an angle, it hits the inside of the  
> big tube on top and runs down the sides and out the space at it's  
> bottom, just below the top of the smaller tube.
> That's how I see it - time to climb back up on the roof. . . .
>
> Chris
> AZ
>
> Riverbend Blacksmiths wrote:
>
>> I too just finished installing a stack (an 8" black stove pipe)   
>> through the steel roof of my shop. It connects down to a thick  
>> sheet  metal chimney that I built and welded up in the shop. It  
>> draws very  nicely from the side (side draft). I bought an off-the- 
>> shelf cap that  fit the diameter of my 8" pipe, but would like  
>> some input from others  in the forum to see what's best. We had a  
>> lot of rain and driving  winds, so there was a nice puddle in my  
>> coal ash bucket after the  rains that drained on through.
>>
>> I'm sorry, but I can't understand or picture Darrell's directions   
>> that he provided here. Am I the only one?
>>
>> Marsha.
>> Ontario, Canada
>> -----
>> On Nov 22, 2006, at 11:59 AM, Darrell wrote:
>>
>>> A 4' section of 14" diameter pipe over the top of your stack  
>>> would  work the best. Attach the section overlapping the top of  
>>> your stack  a couple of inches using three one inch channels  
>>> spaced around the  stack. Rain that enters the top of the 14"  
>>> piece will hit the side  and fall out the gap at the bottom of  
>>> the 14" piece onto the roof.
>>>
>>> Darrell
>>>
>>> ----- Original Message ----- From: "Lynn and Susan Lang"   
>>> <langfarm at together.net>
>>> To: <theforge at mailman.qth.net>
>>> Sent: Wednesday, November 22, 2006 5:38 AM
>>> Subject: [TheForge] Stack Cover
>>>
>>>
>>>> Hello
>>>>
>>>> What turns out to be the best cover for the forge stack?
>>>>
>>>> Want to keep rain and snow out but allow smoke out...
>>>>
>>>> I put up a 12" pipe, told that anything smaller will not be   
>>>> adequate...
>>>>
>>>> Thank you
>>>>
>>>> lynn
>>>>
>
>
>
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James Binnion
jbin at well.com