Guest Posted July 30, 2015 Report Share Posted July 30, 2015 Ok I have a question my first one. I was talking with a colleague of mine and we where discussing air flow. What happen here is we are in the hvac feild and what I am wanting to know if you build a 8/16 room in my shop for lumber storage and my dust collector my colleague thinks it will pressurize the room and make the dust collector not work right because of the positive pressure in the room. So does anyone know if you put a dust collector in a small room will it pressurize and not work right thanks Quote Link to comment Share on other sites More sharing options...
Vyrolan Posted July 30, 2015 Report Share Posted July 30, 2015 Yes, that is correct. It will essentially add to the static pressure of the system and cause an overall drop of air flow at your tools. Pressure on the output side of the collector matters just as much. That is one of the reasons why cheaper dust collectors are sold with lesser filters. If they put a stock filter on it that is good to 5-10 micro particle size, they can get higher air flow rates (good for marketing). Then they sell an "upgrade" to a 1 micron filter but don't bother to tell you since that filter is more restrictive it lowers the air flow rates. Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted July 30, 2015 Report Share Posted July 30, 2015 You could always put a hole in the wall outside and put a ventilation grill over it Quote Link to comment Share on other sites More sharing options...
Guest Posted July 30, 2015 Report Share Posted July 30, 2015 Thank you Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Guest Posted July 30, 2015 Report Share Posted July 30, 2015 Could you do that back in to the shop and still have it to lessen the noise terrymck Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Vyrolan Posted July 30, 2015 Report Share Posted July 30, 2015 Could you do that back in to the shop and still have it to lessen the noise terrymck Yes, and if you look up soundproofing ducts there are ways of making it have minimal noise transfer but not be that restrictive of air flow. You actually WANT it going back to the shop because that is where the air is coming from...otherwise you create a negative pressure in the shop space. Guys that vent their dust collector outside (which is the best option for eliminating fine dust) have to deal with that return air issue. Quote Link to comment Share on other sites More sharing options...
Guest Posted July 30, 2015 Report Share Posted July 30, 2015 Thanks for all the help vyrolan I will have to go back to my set up now Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
shaneymack Posted July 30, 2015 Report Share Posted July 30, 2015 ^^^ Here is a pic of mine vented outside Very quiet now but like Vyrolan is saying, there needs to be return air. Quote Link to comment Share on other sites More sharing options...
Vyrolan Posted July 30, 2015 Report Share Posted July 30, 2015 Very quiet now but like Vyrolan is saying, there needs to be return air. Do you run like that in the winter? I know some people claim venting outside is terrible when you're sending out all your heated air and pulling in cold outside air...but other people say that problem is not really a big deal because you don't run your DC for long continuous intervals. Quote Link to comment Share on other sites More sharing options...
shaneymack Posted July 30, 2015 Report Share Posted July 30, 2015 Do you run like that in the winter? I know some people claim venting outside is terrible when you're sending out all your heated air and pulling in cold outside air...but other people say that problem is not really a big deal because you don't run your DC for long continuous intervals. I havent yet but i am one of those that doesnt run my dc for long periods of time. Its just a hobby for me. I guess i will see how it goes. It gets to below -30celcius where i am. I will put a wood burning stove in the shop if its really bad but im not expecting it to be an issue. Quote Link to comment Share on other sites More sharing options...
Eric. Posted July 30, 2015 Report Share Posted July 30, 2015 I do. It drops the temp a bit but bounces back pretty quickly. If it gets too cold I go inside for 15 minutes. It's worse in the summer because I hate heat. But in trade I don't have to deal with filters and my DC is more efficient. It's a good trade. Quote Link to comment Share on other sites More sharing options...
Coop Posted July 30, 2015 Report Share Posted July 30, 2015 I havent yet but i am one of those that doesnt run my dc for long periods of time. Its just a hobby for me. I guess i will see how it goes. It gets to below -30celcius where i am. I will put a wood burning stove in the shop if its really bad but im not expecting it to be an issue. You don't call -30* Celsius really bad ? Quote Link to comment Share on other sites More sharing options...
shaneymack Posted July 30, 2015 Report Share Posted July 30, 2015 You don't call -30* Celsius really bad ? As long as its outside and not in my shop. -30 in my shop=really bad. - 30 outside i can deal with. Quote Link to comment Share on other sites More sharing options...
Vyrolan Posted July 30, 2015 Report Share Posted July 30, 2015 I do. It drops the temp a bit but bounces back pretty quickly. If it gets too cold I go inside for 15 minutes. It's worse in the summer because I hate heat. But in trade I don't have to deal with filters and my DC is more efficient. It's a good trade. Yea I knew you were one...and I can agree wholeheartedly with worse in the heat. I actually don't mind the cold...just need glue and finishes to actually cure. =p I was curious about shaneymack because he's even more north than me....often a big difference in temps between Chi and StL. =p Quote Link to comment Share on other sites More sharing options...
shaneymack Posted July 30, 2015 Report Share Posted July 30, 2015 I do. It drops the temp a bit but bounces back pretty quickly. If it gets too cold I go inside for 15 minutes. It's worse in the summer because I hate heat. But in trade I don't have to deal with filters and my DC is more efficient. It's a good trade. Couldn't agree more. I have been drum sanding some resawn cherry today and there isnt a speck of dust in my shop. Rather be a little hot than have a shop full of dust and a filter to clean. That was a serious waste of my life. 2 Quote Link to comment Share on other sites More sharing options...
davestanton Posted August 21, 2015 Report Share Posted August 21, 2015 Mine vents outside but not too bad in Australia in winter, maybe 2 degrees Celsius in the coldest times but I decide that maybe it is best to be doing other things when the temp drops. Quote Link to comment Share on other sites More sharing options...
RPCV_Woodworker Posted August 21, 2015 Report Share Posted August 21, 2015 Mine vents outside, but I have air intakes for my woodstove that obviate the pressure difference/temp drop. Quote Link to comment Share on other sites More sharing options...
mat60 Posted August 21, 2015 Report Share Posted August 21, 2015 Mine vents outside, but I have air intakes for my woodstove that obviate the pressure difference/temp drop.I mounted my 3hp dc in the back room wall and it it blows everything outside in a shed and I remove the sawdust with my tractor....I does work great for what it is but I do crack a window when I use it and it does cost you some heat and cooling...When you plane 500 ft at a time there is no way I can mess with bags...It may sound nuts to some. Quote Link to comment Share on other sites More sharing options...
Brendon_t Posted August 21, 2015 Report Share Posted August 21, 2015 I mounted my 3hp dc in the back room wall and it it blows everything outside in a shed and I remove the sawdust with my tractor....I does work great for what it is but I do crack a window when I use it and it does cost you some heat and cooling...When you plane 500 ft at a time there is no way I can mess with bags...It may sound nuts to some. planing 500 bf in a day is the crazy thing to me. I doubt my planer has seen 500 bf in the last 2 years. Quote Link to comment Share on other sites More sharing options...
mat60 Posted August 21, 2015 Report Share Posted August 21, 2015 (edited) I buy 500 BF at a time to get a good deal and I always run all of it through the planer taking a small pass on each side so I can see what the wood really looks like and go from there...I don't do this every day and there is no sense and not doing it all at the same time...Not that much fun . Edited August 21, 2015 by mat60 Quote Link to comment Share on other sites More sharing options...
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