[Greenbuilding] ventilating a tiny shop space
Brian Milani
bmilani at web.ca
Sun Oct 24 21:20:27 CDT 2010
Thanks Thomas,
From the sound of it, it seems like you're suggesting that neither
fresh air from outside nor exhausting shop air is necessary---that a
good air cleaner will do the job. That's fine with me, since it would
save energy and obviate the need for makeup air. For that, I would be
more than willing to tolerate a bit more noise--but it just seems almost
too good to be true. I suppose I could go with the air-cleaner and add
other ventilation later if I need to. In any case, the concern with the
fine dust is more than valid, and I don't think an exhaust fan would
completely deal with that.
Thanks also to Clarke for the shop vac exhaust suggestion. It's an
option I hadn't considered.
Brian M.
On 24/10/2010 3:08 PM, Thomas Lewis wrote:
> I have a air cleaner hanging from my shop ceiling and I use it all the
> time. but I also have loud music and ear protection on so I don't
> really notice it. when I'm sketching or laying out stuff I just use
> the remote and turn it off. I've never found it to be more annoying
> than blowing various wood species out of my nose.
>
> the problem with relying on a shop vac or dust collection system
> hooked up to your tools is it only gets the majority of the dust.
> those fines don't get past the filter, they are just propelled into
> your work space willy nilly, so having an air cleaner that can do lots
> of air changes rapidly takes up the dust collection slack. with a
> small shop like you propose, you will rarely, if ever, notice any dust
> in the air while running a circulating air filter.
>
> If you have a shop vac hooked up to your tool then I'd bet you
> wouldn't need a respirator until you apply finishes.
>
> It would be nice to have a voc filter for the unit.
>
>
> "Time makes more converts than reason." Thomas Paine, Common Sense
>
> --- On *Fri, 10/22/10, Clarke Olsen /<colsen at fairpoint.net>/* wrote:
>
>
> From: Clarke Olsen <colsen at fairpoint.net>
> Subject: Re: [Greenbuilding] ventilating a tiny shop space
> To: "Brian Milani" <bmilani at web.ca>
> Cc: greenbuilding at lists.bioenergylists.org
> Date: Friday, October 22, 2010, 4:00 PM
>
> One of those air cleaners has been hanging from the ceiling in my
> shop for 8 years - I haven't used it because although it is not
> particularly noisy, it's enough to be annoying, annoying,
> annoying, annoy....
> Exhausting the shop vac to the outside is a way of losing those
> fines that get past the filter, and pulling air in - preferably
> through
> some semi-conditioned space.
> Clarke Olsen
> 373 route 203
> Spencertown, NY 12165
> USA
> 518-392-4640
> colsen at fairpoint.net </mc/compose?to=colsen at fairpoint.net>
>
>
>
>
> On Oct 22, 2010, at 1:12 PM, Brian Milani wrote:
>
> > Hi,
> >
> > In our almost complete reno of an old semi in Toronto, I am
> converting an old basement Cold Room into a small workshop, for
> mainly woodworking. The basement is now well-insulated, and has a
> new radiant floor.
> > I am having trouble finding reliable information on ventilation
> for the shop.
> >
> > The proposed shop is very small---8 feet by 10 or 11 feet--and
> has no windows. I want to be able to close the door and keep dust
> out of the rest of the house. I'll be using mainly small tools,
> and a small table saw and perhaps a compound miter saw. So a shop
> vac (along with whatever comes with the tools) will be my main
> dust collection system, and I'll be using a respirator when doing
> my cuts, routing and sanding. But intuitively, one would think
> that bringing in some fresh air would be a good idea too.
> >
> > Some people have proposed a simple larger-capacity bathroom
> exhaust fan. Others on the web seem to say that a second fan, to
> draw in supply air, is necessary. A fellow from a local
> industrial supply store has told me that we don't need fresh air,
> just a slick air cleaner like this
> >
> http://www.general.ca/site_general/g_produits/dust_collector/10-550.html
> > which is recirculating, and doesn't require makeup air or change
> the room temperature.
> >
> > I've seen advice for larger home workshops, but, much of it
> doesn't seem relevant to my situation. Especially after finishing
> the reno, building some storage, etc., the shop will be for
> occasional use. And I haven't seen much advice for such small
> shops, except for Bob Villa recommending an exhaust fan, without
> elaborating about size, makeup air, etc.
> >
> > Besides the new radiant floor, we have a new heating
> system---rads with a little radiant flooring--along with a new HRV
> and ventilation system.
> >
> > Any suggestions for inexpensive ventilation measures that would
> work for this small workshop?
> >
> > Brian M., Toronto
> >
> > --Brian Milani
> > www.GreenEconomics.net
> >
> >
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--
Brian Milani
www.GreenEconomics.net
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