OBS Chimney conversion?

[Charcutier]

Hello, all -

I'm thinking about converting a small shed to a housing unit for my Bradley Smoker.  Currently it sits on a table on my back porch and I have to drag the whole assembly out from under the porch to avoid discoloring the ceiling.  I live in the Pacific Northwest, which means I also have to wait for a day with no rain - what a pain.

So, I've picked my shed and plan to install a vent through the roof with a small chimney cap.  I'd also like to have a damper, of course.

For those who have done conversions, what would you recommend for equipment?  I'm thinking a 5" start collar/damper screwed into the top of the OBS, with a 5-4" reducer and 4" ducting through a hole in the roof, straight up (flashed, of course).  I was also thinking to run a longer duct from the cold smoking attachment outside of the shed and back in at the proper height to attach, so that the smoke gets truly cooled down - but I worry that too long a run will mean it won't draw properly.  Same with the roof vent, actually - I wonder if it will draw properly with a rain cap up there.

Anyway, any help or suggestions you can provide will be greatly appreciated!

Thanks so much,

Carolyn the (amateur) Charcutier

[KyNola]

Hi Carolyn and welcome to the forum.  While I can't help you with the proper equipment for a chimney conversion, I can tell you that my BDS has been sitting on a screened in porch for around 4 years.  The ceiling is a cream color and it is not discolored at all. If potential discoloration of your porch ceiling is the only reason you're going through this exercise, you can save your money.

[beefmann]

here is what i did,,, also added a fan below the t on the inside of the  shed to remove excess heat and smoke,,,,  works great

http://forum.bradleysmoker.com/index.php?topic=17581

[classicrockgriller]

Carolyn, Welcome to the Forum.

Agree with KyNola.

The smoke will spread out before discoloring the ceiling.

[Charcutier]

Thanks for the great info, y'all!

The ceiling was my main concern - which you have allayed.  But I'd also like to clear that space on my small back porch.  It's just really crowded back there.

beefmann, is that a 2x2 rubbermaid shed?  And what's the thing on top - looks like a 6" T junction with drain covers, am I right?

[Kitchen Commander]

here is what i did,,, also added a fan below the t on the inside of the  shed to remove excess heat and smoke,,,,  works great

http://forum.bradleysmoker.com/index.php?topic=17581

Holy Freakin Cow!!! That's awesome!!!  Nice Job!!!  I think I might do something along the same line eventually.  Right now my OBS is bone stock.  The first thing I want to do is add the 900 watt element, the PID and maybe a fan.  Jury's still out on the fan, but I suppose it would help.  I use a battery operated one in our motorhome fridge and it keeps the temps pretty even all over.  I really need the extra heat here in Reno Nevada.  I did 3 racks of ribs last weekend and it never got over 200 inside because it was so chilly and windy outside.

What an incredible find, finding this forum after I got my OBS. 

[OU812]

here is what i did,,, also added a fan below the t on the inside of the  shed to remove excess heat and smoke,,,,  works great

http://forum.bradleysmoker.com/index.php?topic=17581

Holy Freakin Cow!!! That's awesome!!!  Nice Job!!!  I think I might do something along the same line eventually.  Right now my OBS is bone stock.  The first thing I want to do is add the 900 watt element, the PID and maybe a fan.  Jury's still out on the fan, but I suppose it would help.  I use a battery operated one in our motorhome fridge and it keeps the temps pretty even all over.  I really need the extra heat here in Reno Nevada.  I did 3 racks of ribs last weekend and it never got over 200 inside because it was so chilly and windy outside.

What an incredible find, finding this forum after I got my OBS.

If'n you can get your smoker outta the wind it will make ahellofa difference with the getting cabnet temp.