[pianotech] CA fume fan

[David Skolnik]

Rex -
I stopped by a good, local hardware store last week to get a sense of 
cost and availability of parts.  I realized that there were some 
aspects of this set up I didn't quite understand, one being the scale:
If the fan is 8", what are the dimensions of the floor vent?
Is the fan housing what is visible in the photo, or has the fan been 
inserted into a length of duct?
With the fan you used, what do you think the maximum effective length 
of 4" hose would be?
Was this constructed with standard pop rivets?
Are there better grades of duct work?  The ones I found seemed pretty flimsy.
If remote location is not possible, how would you rate the noise of 
the fan you used?

Thanks.  Still optimistic.

David Skolnik
Hastings on Hudson, NY



At 03:16 PM 2/13/2012, you wrote:
>
>This is my second try at replying. I never saw the first come through and
>think it was because the attachment was to large. I apologize if this is a
>duplicate.
>
>To help with the fume problem, I created a device made from standard duct
>work, a round duct booster fan and a length of 4" flexible shop dust control
>tubing (about 10-12 feet). The fan was the largest that I could get (8") and
>reducers were used to get the diameter to 4" for the flexible hose. At the
>other end, a floor vent adapter was fitted so that the fan was farther back
>from the opening of the unit and so that the unit would sit flat. An
>electrical box was attached to the side and was wired to a 3 prong plug. It
>turned out to be less expensive to by a long, heavy duty extension cord and
>cut the end off then to buy the wire and plug. The hose is stored in a
>plastic storage box with a lid and the exhaust unit sits on top.
>
>
>
>The unit is set outside a door or in a window and the flexible hose is held
>close to the pins while gluing. It is extremely quiet (I have to feel the
>end of the hose to tell if it is running). The reduction of the size of the
>fan housing to the size of the hose is supposed to create a vortex affect
>that increases the air flow as compared to what the fan would normally pull
>in an 8" duct.
>
>
>
>My experience has been that there is no problem with vapors either to myself
>or left in the house. If I forget to move the hose along with the gluing,
>the vapors bother my eyes immediately. My vision is poor, so I tend to have
>to work close to the pins to see what I am doing. Without this unit, it
>would be impossible to do this job. I also hover the hose back and forth
>over the pins after I am done to try and get the last of the fumes out as
>the glue dries.
>
>
>
>Hope that this helps to get some creative juices flowing with other ideas to
>help with this job.
>
>
>
>Rex Roseman
>
>
>The message is ready to be sent with the following file or link attachments:
>
>CA fume fan.jpg
>
>
>Note: To protect against computer viruses, e-mail programs may prevent
>sending or receiving certain types of file attachments.  Check your e-mail
>security settings to determine how attachments are handled.
>