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Dust Collection Outside Question

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Forum topic by Chris posted 04-27-2016 03:14 PM 527 views 0 times favorited 12 replies Add to Favorites Watch
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Chris

164 posts in 1045 days


04-27-2016 03:14 PM

I have read many threads about this but I just can’t seem to figure out this question: If I use a HF dust collector and vent it outside either through a window or the wall do I need to make a chip separator below it with a Thein baffle built in? Or, can I just mount the motor on the wall, run PVC to it, and have it discharge outside?

I don’t heat/cool my shop so I am not worried about the negative air pressure issue … and I live in the country .. so I am really considering running everything to blow outside my shop. I am a rookie that is not proud so please provide basic advice if you feel like I am missing something that should be obvious.

Thanks in advance.


12 replies so far

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hotbyte

841 posts in 2437 days


#1 posted 04-27-2016 03:19 PM

Should work, you’ll just have a nice compost pile right outside of your shop :)

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ScottM

346 posts in 1608 days


#2 posted 04-27-2016 03:38 PM

If you’re blowing chips outside, think about termites and other critters.

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clin

510 posts in 457 days


#3 posted 04-27-2016 03:45 PM

Wood chips hitting the impeller is less than ideal.

One thought, these types of air movers actually draw more electrical load the LESS air restriction they have. So without a filter, the motor may overload. Check the amp draw to make sure it’s okay. If not, then add the separator or just restrict flow in some other way.

-- Clin

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pintodeluxe

4853 posts in 2274 days


#4 posted 04-27-2016 03:55 PM

It can be done. If I were to set up that way, I would have the exhaust empty into a bin or dumpster.

One step better would be to add a separator inside for easy chip removal, and send the exhaust outside. This way you have no fine filter to clog up.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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Chris

164 posts in 1045 days


#5 posted 04-27-2016 04:27 PM

Thanks for all the responses. I would have a dedicated 20 amp circuit for the dc. I have just been watching youtube videos about how to make my own separator on a unit like that and it seems pretty complicated and it looks like it take up some shop space. I was just wondering what the big cons would be to doing something like this …

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Jimbo4

1432 posts in 2224 days


#6 posted 04-27-2016 04:34 PM

Depends how close and friendly your neighbors are, creating clouds of dust in their direction.

-- BOVILEXIA: The urge to moo at cows from a moving vehicle.

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Chris

164 posts in 1045 days


#7 posted 04-27-2016 04:40 PM

There is a pasture bigger than a football field between me and my neighbors so I don’t think that would be a big deal.

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Blackie_

4531 posts in 1974 days


#8 posted 04-27-2016 04:45 PM

Chris, would setting it up in a closet outside of the shop? That’s how mine is setup, all dust is pipped outside into the bag, I have no need for a separator with this application but I don’t pick up big chips either.

-- Randy - If I'm not on LJ's then I'm making Saw Dust. Please feel free to visit my store location at http://www.facebook.com/randy.blackstock.custom.wood.designs

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Chris

164 posts in 1045 days


#9 posted 04-27-2016 05:30 PM

Randy … what do you mean when you say you don’t pick up big chips?

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CharlesA

3019 posts in 1259 days


#10 posted 04-27-2016 05:59 PM

I vent mine outside with a Thien. Very little dust goes outside—no appreciable accumulation in two years. But, I dump about 30-40 gallons out of the barrel every 2-3 months. That’s a lot going outside. If you don’t mind the pile of chips/dust. seems like it would work. I can’t do that.

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

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AZWoody

693 posts in 685 days


#11 posted 04-27-2016 07:13 PM



I vent mine outside with a Thien. Very little dust goes outside—no appreciable accumulation in two years. But, I dump about 30-40 gallons out of the barrel every 2-3 months. That s a lot going outside. If you don t mind the pile of chips/dust. seems like it would work. I can t do that.

- CharlesA

I agree, if you don’t mind the chips, etc settling outside, you can do it with no separator. If you do want to try to keep them in a container easy to dispose, there are many different kind of baffles/separators online you can make for that.

Don’t worry about the motor overloading if it’s run without a filter. I’ve run the HF dust collector with no filters and never had a problem and it was on a 20 amp circuit by itself. One thing to consider though, is that the HF is not that strong if you’re going to be running ducting throughout the shop. If you don’t use a separator, you will maximize your cfm at least and get a better job at chip collection.

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Rick M

7910 posts in 1841 days


#12 posted 04-28-2016 12:43 AM

Bigger chips hitting the impeller will ‘eventually’ wear it out but so what, in 20 years buy a new impeller.

Here is one way to handle outdoor exhaust and how I personally plan on doing it when I eventually get around to it. Basically you exhaust into a small outdoor closet with a chimney, the fines will go up and out or settle back down into the bottom. Place a Rubbermaid tub in the bottom and go dump it every week, or month.

Picture is a large commercial DC from the 1800’s but you get the idea, just downsize it.

-- http://thewoodknack.blogspot.com/

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