LumberJocks

DC in the basement - Get It Out?

  • Advertise with us

« back to Safety in the Woodworking Shop forum

Forum topic by revwarguy posted 04-05-2013 09:19 PM 810 views 0 times favorited 16 replies Add to Favorites Watch
View revwarguy's profile

revwarguy

125 posts in 620 days


04-05-2013 09:19 PM

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

View DIYaholic's profile (online now)

DIYaholic

14078 posts in 1394 days


#1 posted 04-05-2013 09:26 PM

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 procrastination a bad thing?

View revwarguy's profile

revwarguy

125 posts in 620 days


#2 posted 04-05-2013 09:57 PM

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

View JL7's profile

JL7

7397 posts in 1684 days


#3 posted 04-05-2013 11:07 PM

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.

View Charlie's profile

Charlie

1064 posts in 1005 days


#4 posted 04-05-2013 11:29 PM

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. :)

View DIYaholic's profile (online now)

DIYaholic

14078 posts in 1394 days


#5 posted 04-05-2013 11:30 PM

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 procrastination a bad thing?

View DIYaholic's profile (online now)

DIYaholic

14078 posts in 1394 days


#6 posted 04-05-2013 11:33 PM

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 procrastination a bad thing?

View lew's profile

lew

10122 posts in 2474 days


#7 posted 04-06-2013 12:03 AM

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.

View revwarguy's profile

revwarguy

125 posts in 620 days


#8 posted 04-06-2013 12:20 AM

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

View Shawn Masterson's profile

Shawn Masterson

1262 posts in 667 days


#9 posted 04-06-2013 12:40 AM

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.

View DIYaholic's profile (online now)

DIYaholic

14078 posts in 1394 days


#10 posted 04-06-2013 12:55 AM

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 procrastination a bad thing?

View Mainiac Matt 's profile

Mainiac Matt

4315 posts in 1047 days


#11 posted 04-06-2013 01:35 AM

What Charlie said….

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

View revwarguy's profile

revwarguy

125 posts in 620 days


#12 posted 04-06-2013 01:23 PM

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

View Shawn Masterson's profile

Shawn Masterson

1262 posts in 667 days


#13 posted 04-07-2013 01:39 AM

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

View Dusty56's profile

Dusty56

11676 posts in 2407 days


#14 posted 04-07-2013 03:34 AM

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!

View AlaskaGuy's profile

AlaskaGuy

770 posts in 1028 days


#15 posted 04-07-2013 05:03 AM

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!

showing 1 through 15 of 16 replies

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase