HomeRoast Digest


Topic: venting (was Re: +What a difference...) (5 msgs / 128 lines)
1) From: homeroast
On Jan 21, 2008, at 7:39 AM, Ken B wrote:
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I'll try to get some pictures of my setup posted soon.
I took a pine board, routed the edges (an optimization step, but not  
strictly necessary) to fit nicely in the window frame, cut a slightly  
larger than 4" hole in the middle; Then I took a Tahini can, which is  
4" diameter, and cut about 12 slots about 1" deep around the rim (I  
left the bottom on at this point to keep structural stability). Then  
I bent the tabs made by the slots outward, inserted the can through  
the hole so that the tabs rested on the board around the hole, and  
nailed them into the board with roofing nails. Then I taped around it  
with aluminum tape.
Now I had a vent that I could install into a window. My first roast  
with this lashup was enough to tell me that it was not good enough.  
That didn't stop my wife from telling me too ;)
So I used a couple of drywall screws to affix a 12V muffin fan on the  
outside of the board. I didn't have any 120VAC fans handy, or I would  
have used one of them. Someday, when I need my 12V supply for another  
project, I'll probably get motivated.
The windows in my house are kind of low, so the duct vents below the  
level of the iRoast; and because I was lazy, the hose goes up, then  
bends down. Doesn't matter - the extra pull of the exhaust fan does a  
great job.
-
allon

2) From: homeroast
When people were talking about cooling with the leaf blower vacuum
option, I was wondering weather it might not be relatively easy to use
the leaf blower on vacuum to cobble together a rudimentary roasting
exhaust, say from a kitchen counter out a window.
Brian
On Jan 21, 2008 10:38 AM, Allon Stern  wrote:
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3) From: homeroast
That sounds like quite the setup Allon.  But it also requires tools and 
a modicum of mechanical ability. I have no tools for woodworking left, 
and even when I did have them, they won most battles.  I did try using a 
12" electric fan as an exhaust fan above the i-Roast. I pointed it at 
the window and turned it to high, with no tubing attached.  The result 
was 4 smoke alarms going off in the house.  (4 out of 4)  No wife to 
tell me it did not work, though I figured it out myself.  ;-)  Hence, 
the dryer vent hose.  At least with that setup, there is not enough 
smoke in the house to set off any smoke alarms.  I am sure one day I 
will have a place to roast.  But until then, I do what I can with what I 
have. :-)
Best Regards,
Ken B
 
Allon Stern wrote:
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4) From: homeroast
I didn't look at your pics( if any), but just an idea based on my set up-If you were to cut a larger hole in your plywood, insert a cheap box fan and shoot it out the window with your roaster nearby, it will do a good job of drawing almost everything out.  You may need to crack a window somewhere else if the draw isn't good.  I've used mine in 4degree weather, and I don't have the huge heat loss you might think.
Tim
---- Allon Stern  wrote: 
=============
On Jan 21, 2008, at 7:39 AM, Ken B wrote:
<Snip>
<Snip>
I'll try to get some pictures of my setup posted soon.
I took a pine board, routed the edges (an optimization step, but not  
strictly necessary) to fit nicely in the window frame, cut a slightly  
larger than 4" hole in the middle; Then I took a Tahini can, which is  
4" diameter, and cut about 12 slots about 1" deep around the rim (I  
left the bottom on at this point to keep structural stability). Then  
I bent the tabs made by the slots outward, inserted the can through  
the hole so that the tabs rested on the board around the hole, and  
nailed them into the board with roofing nails. Then I taped around it  
with aluminum tape.
Now I had a vent that I could install into a window. My first roast  
with this lashup was enough to tell me that it was not good enough.  
That didn't stop my wife from telling me too ;)
So I used a couple of drywall screws to affix a 12V muffin fan on the  
outside of the board. I didn't have any 120VAC fans handy, or I would  
have used one of them. Someday, when I need my 12V supply for another  
project, I'll probably get motivated.
The windows in my house are kind of low, so the duct vents below the  
level of the iRoast; and because I was lazy, the hose goes up, then  
bends down. Doesn't matter - the extra pull of the exhaust fan does a  
great job.
-
allon

5) From: homeroast
I really see no reason you could not do it you can get some ducting from a
heating contractor or dryer hose from home depot and hook it up should work
fine if it dose not suck off too much heat which  can be a problem


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