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DC in the basement - Get It Out?

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Forum topic by revwarguy posted 510 days ago 775 views 0 times favorited 16 replies Add to Favorites Watch
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revwarguy

125 posts in 534 days


510 days ago

I have my workshop in the basement, and I’m thinking of revamping my DC, which currently has a 5 micron pleated filter before returning air to the room – the kind with the paddle you periodically run around the pleats.

Rather than using that, I am thinking of just routing a 6 inch vent pipe up through the joists and outside. Anyone done that? Post pics? Know of a good way to make an outdoor flap, kind of like a clothes dryer vent that doesn’t reduce airflow too much be keeps weather and critters out?

Anything wrong with this idea? Wouldn’t this be better than even trying to return the air to the room?

-- "72.6 per cent of all statistics are made up on the spot." - Steven Wright


16 replies so far

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DIYaholic

13318 posts in 1308 days


#1 posted 510 days ago

The only real problems are:
1) neighbors…..
2) Sucking the conditioned air out (AC, Heat or dehumidifier) & replacing it with UNconditioned air.

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procratination a bad thing?

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revwarguy

125 posts in 534 days


#2 posted 510 days ago

Hi Randy – recognize your avatar from cnczone – thanks for the reply.

I thought of those objections, but with a cyclone before the blower, its is going to put out much less obvious dust than my clothes dryer does, an nobody complains about that. The dryer also kicks out conditioned air as well. A DC blower would recycle much more air than that for sure, but I think I could handle it. I don’t often run it continuously – I am not what you would call a production shop.

-- "72.6 per cent of all statistics are made up on the spot." - Steven Wright

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JL7

7127 posts in 1598 days


#3 posted 510 days ago

I would love to do the same thing, but our climate in Minnesota is all over the board….cold and hot…..I’m interested to see what you decide to do…....

-- Jeff - I have not failed. I've just found 10,002 ways that won't work.

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Charlie

1008 posts in 919 days


#4 posted 510 days ago

If you run your DC to the outside, keep in mind that if you have any gas equipment (furnace, hot water tank, etc) you will almost certainly cause a backdraft and suck the exhaust gases back into the house (carbon monoxide, etc). I have a high volume exhaust over my cooktop in the kitchen. 6 inch pipe to outside. If I ONLY run that, I can sometimes see me chimney exhaust stop and start if I go outside when it’s cold. So I’m teetering on the brink of backdraft and sometimes DO cause a backdraft. So I have to open a window for make-up air when I use the exhaust hood on anything other than the lowest setting. If someone is in the bathroom running THAT exhaust fan (much lower volume but it adds up) then I definitely have to open a window when I run the kitchen exhaust.

So…. be sure you provide equivalent make-up air to offset all that air you’re dumping outside as you can create a pretty dramatic negative pressure in your house. :)

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DIYaholic

13318 posts in 1308 days


#5 posted 510 days ago

Rev,
I need to get back over to cnczone….
as soon as I get a little further along on my shop setup, a CNCrouter build will be on deck!

Don’t know your locale, but here in Vermont, heating in winter & humidity in summer could cause problems, were I to vent outside. If heat, AC & humidity isn’t a major problem, go for it.

BTW: Welcome to LumberJocks…..
A great place to feed your wood working insanity!!!

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procratination a bad thing?

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DIYaholic

13318 posts in 1308 days


#6 posted 510 days ago

Charlie,
Great pick up on the CO backdraft issue…..
I knew I was forgetting something!!!

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procratination a bad thing?

View lew's profile

lew

10002 posts in 2388 days


#7 posted 510 days ago

Absolutely on the CO problem. I have a squirrel cage exhaust fan in my basement shop window and cannot run it if the furnace might turn on. It can fill the shop with fumes in no time.

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

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revwarguy

125 posts in 534 days


#8 posted 510 days ago

Good point, Charlie. I wonder what could mitigate that? I guess you would need another blower pointed inward with matching 6 inch pipe just to stay static.

Randy, I’m in St. Louis – bitter winters, burning dustbowl conditions in the summer (at least last summer – hey, but its a dry heat!) hurricaines up from the gulf in the fall, and we’re just getting ready for the spring tornado festival.

-- "72.6 per cent of all statistics are made up on the spot." - Steven Wright

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Shawn Masterson

1253 posts in 581 days


#9 posted 510 days ago

I wouldn’t waste your time. If you have a dust problem after the pleated filter then you need to look at leaks, or an over head dust filter. If you were in an out building that had no climate control then sure, but indoors no way.

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DIYaholic

13318 posts in 1308 days


#10 posted 510 days ago

The 5 Micron bag is allowing the finest of fines (the health hazardous ones!) to recirculate. I suggest upgrading to a canister filter with better filtration. I use the Wynn Enviromental 35A274NANO, which filters down to 0.5 Microns. Shawn is correct about supplementing the DC with an ambient air cleaner. I have a shop built ambient air cleaner, utilizing a squirrel cage blower.

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procratination a bad thing?

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Mainiac Matt

3895 posts in 961 days


#11 posted 510 days ago

What Charlie said….

-- Pine is fine, but Oak's no joke!

View revwarguy's profile

revwarguy

125 posts in 534 days


#12 posted 509 days ago

My mistake, Randy. I do have a canister type (what I meant by a pleated one with a paddle) and it is a 1 micron filter, not 5, which is here.

I also have a room filter, shown here (go down to the bottom of the page) sitting under my V drum sander. It was made from a attic gable fans and some good furnace filters. Also serves a a base for several tools.

Anyway, I am still thinking of upgrading my DC, which is now a bag/cannister affair with a Thein top hat front end with a cyclone and more powerful blower, hoping that will work better.

-- "72.6 per cent of all statistics are made up on the spot." - Steven Wright

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Shawn Masterson

1253 posts in 581 days


#13 posted 509 days ago

the most important thing about the air filter is for them to work properly is they need to be mounted high and at a point where they circulate the air around the room un obstructed. if the filter has to draw it all to 1 point it will be very inefficient. when you turn on a properly mounted air filter it causes a draft around the room and once the air is moving it will stay in motion, kind of like a pool. if you walk around it one way the current will keep going if you stop. just an FYI

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Dusty56

11644 posts in 2321 days


#14 posted 509 days ago

Talk about beating a dead horse , this subject has been covered 62 times so far on this site alone ! WOW !
Enter ”venting DC exhaust outside” in site search bar and settle back for some answers…pack a lunch first ! LOL : )

-- I'm absolutely positive that I couldn't be more uncertain!

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AlaskaGuy

603 posts in 942 days


#15 posted 509 days ago

Talk about beating a dead horse , this subject has been covered 62 times so far on this site alone ! WOW !
Enter ”venting DC exhaust outside” in site search bar and settle back for some answers…pack a lunch first ! LOL : )

—When did quiet and quite become the same word ? I’m guessing about the same time as your and you’re did.

Lucky you. You don’t have to read anymore of this thread.

-- Alaskan's for Global warming!

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