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Dead Horse - Dust Collection
Howdy,
It is not my intention to bring up an old topic that can be searched for and read. Seconldy, by searching and reading older posts I found William F. Pentz's wonderful site on a href="http://billpentz.com//woodworking/cyclone/index.cfm"Cyclone Dust Collection/a. My question is based on where to place the system. I have read about how air needs to be replaced, a vacume being created and dust seeping into the house. I am still in the planing stages of my shop. I have about an 800 sq foot basement that is pretty empty except for a lawnmower, washer and dryer. My initial thought was to have it placed outside in my backyard area by punching a hole through the foundation or going through a window, but then I read about the air needing to be replaced and the vacume being created. Cost of heat is not an issue as my lungs are more important than money. One other problem and I think it is larger than any other I will have, is that my furnance is also in the basement, but frankly that is my next post with an appropriate topic heading. |
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"Tom Veatch" wrote in message if Pentz's recommendations are followed - is not returned to the shop/basement, will makeup air be pulled through the furnace flue? I don't know whether or not this is a valid concern, Yes, a very valid concern. but if you do wind up with backflow through the furnace you'll have a potentially serious, even deadly, situation. For that reason, I would lean toward returning the DC exhaust to the shop/basement through a set of high efficiency filters. That would not only neutralize any tendency for backflow though the furnace, it would also hold down the need to heat/cool the makeup air. My recommendation - for whatever it might be worth: 2. Duct the cyclone exhaust through high efficiency particulate filters to get the rest of the fines and exhaust the clean air back into the shop/basement to prevent creating a backflow situation through the furnace flue and firebox. If you have the space for it, make a room or closet for the DC. Instead of covering the walls with sheetrock, cover large areas with filter media. The best would be some sort of HEPA filters. You'd want enough area to easily carry the 800 cfm even after partial blocking from use. -- Ed http://pages.cthome.net/edhome/ |
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wrote in message oups.com... I am still in the planing stages of my shop. I have about an 800 sq foot basement that is pretty empty except for a lawnmower, washer and dryer. My initial thought was to have it placed outside in my backyard area by punching a hole through the foundation or going through a window, but then I read about the air needing to be replaced and the vacume being created. Cost of heat is not an issue as my lungs are more important than money. One other problem and I think it is larger than any other I will have, is that my furnance is also in the basement, but frankly that is my next post with an appropriate topic heading. Think distance. Locate your system exhaust as far from the furnace as possible. Don't pull air through the chimney, re-use it. A lot of flummery out there about particle size and such won't change reality - filters which provide multiple paths to open air efficiently trap the smallest of particles in low flow areas. Then you have your body's natural defenses, and the inescapable truth that the "danger" of organic particulates is extrapolated from data on inorganic particulates where individuals worked every day in virtually opaque atmospheres. Pleated felt-type filters will do just fine to re-filter your exhaust. It's a cleanliness issue, not a health issue. |
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Howdy,
I was talking about the lawmower...sorry. I'm kind of new to the groups/bulleten board thing. |
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wrote in message oups.com... Howdy, It is not my intention to bring up an old topic that can be searched for and read. Seconldy, by searching and reading older posts I found William F. Pentz's wonderful site on a href="http://billpentz.com//woodworking/cyclone/index.cfm"Cyclone Dust Collection/a. My question is based on where to place the system. I have read about how air needs to be replaced, a vacume being created and dust seeping into the house. If the dust collector is in the same room as the tool it is working with, no vacuum will occur in the room itself. The air being drawn in the hose will be blown out thru the bags. I am still in the planing stages of my shop. I have about an 800 sq foot basement that is pretty empty except for a lawnmower, washer and dryer. Just make sure you have the height requirements for whatever unit you intend to use. My initial thought was to have it placed outside in my backyard area by punching a hole through the foundation or going through a window, but then I read about the air needing to be replaced and the vacume being created. Cost of heat is not an issue as my lungs are more important than money. You say that now, wait until you get the bill. As long as you use good bags on you collector, there is no need to move it outside. Moving it to the outside will cause a vacuum in your basement and it will draw that air from anywhere it can including the furnace. If you thought that dust was bad, just imagine carbon monoxide. One other problem and I think it is larger than any other I will have, is that my furnance is also in the basement, but frankly that is my next post with an appropriate topic heading. If you are concerned about that you can always build a tiny room around it to protect it and use furnace filters on the door so that it can get the air it needs. If you have good bags on your dust collector and a good air filter setup, the furnace will be just fine without doing anything other than a cleaning once a year (and you should be doing that anyway). -- If at first you don't succeed, you're not cut out for skydiving |
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