HomeRoast Digest


Topic: Smoke Hood for Hot Top (47 lines)
1) From: Demian Ebert
Morning-
Sorry for the cross postings. I just posted the same note in the Forum.
A couple of months ago I asked if anyone had built a smoke hood for their
HT. I got a couple of replies, but nothing specific. I have been wanting to
move my HT into the basement for quite a while. I've been roasting in the
garage, and while the temperatures in Portland (OR) aren't too bad, the
garage leaks and it's a bit damp. I was concerned about the electronics in
the HT if they were exposed to this damp over the course of the winter. So,
over the last couple of days I built a smoke hood for the roaster. I found
some veneer in the garage (from the previous owner of our house) which when
combined with some 1" stock, worked pretty well to create a box. I got an
8-inch diameter, 180 cfm bathroom vent fan that I put in the top corner and
ran the exhaust out a basement window. The box is almost 3 ft tall because
that's the height of the window from the bench. I could have put the fan in
the top and run the ducting up, through a 90 then out the window, but this
was easier. I'll put some hardware cloth screening over the outside end of
the vent to keep the small critters out.
There is room above the roaster do dump beans into the hopper, and it's easy
to spin the whole machine sideways to vaccuum out the roast chamber and
chaff tray.
I ran a couple of test roasts in the garage before knocking out the window.
Initially I had a small gap around the bottom to let me run power cords, but
the smoke was escaping that way so I cut the legs off and put the sides
flush with the bench. I think I'll eventually seal up the left-hand side
because I can get the beans out the front easy enough and I don't actually
look at the roasting beans very often through the roaster's window. Overall,
the fan and box seem to control the smoke from a FC+ roast of Brecia Blend
pretty darn well. I've done enought testing in the garage that I don't have
good reason to run another test roast now that it's installed, but I'm
pretty confident that it'll control the smoke. If it doesn't, I'll put a
plexiglass door on the front hinged so I can flip it up and with a cut-out
for the control panel.
A couple of pictures are at:http://picasaweb.google.com/coffehound/HTSmokeHood?feat=directlinkDemian
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