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Old 06-30-2011, 10:49 AM   #1
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Default What is the ultimate way to exhaust nitro fumes indoor.

Like the title says. Doing some research. I basically want it to work well enough that you dont have to wear a mask. If it helps any, there is already installed industrial ventilation, which can moved need be. Some may say that would be enough, but most that know anything about nitro fumes, know it just sits there and lingers, unless the vents are low enough (20 foot ceilings), then I guess the thread is useless since I got the answer already installed.
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Old 06-30-2011, 10:55 AM   #2
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i would look into an air exchange system. i know their pricey but it always kept the air quality good in one of the welding shops i worked in.
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Old 06-30-2011, 11:40 AM   #3
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Run electric only.
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Old 06-30-2011, 12:22 PM   #4
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Originally Posted by portyansky View Post
Like the title says. Doing some research. I basically want it to work well enough that you dont have to wear a mask. If it helps any, there is already installed industrial ventilation, which can moved need be. Some may say that would be enough, but most that know anything about nitro fumes, know it just sits there and lingers, unless the vents are low enough (20 foot ceilings), then I guess the thread is useless since I got the answer already installed.
2 winters ago we ran in-door nitro with good success. We used 3 - 36" chicken house fans pulling and 1-2 36" fans pushing fresh air in mounted on the opposite end of the pulling fans. When it got really cold we turned the pushers off. To keep people from passing out from nitro fumes we also seperated the Pit area from the racing area using 6mil plastic. It kept heat in and cold/fumes out.. We raced from Nov - April with no one complaining about fumes.

We also made it very clear that no Nitro cars were to be started in the Pit area.. I wish I had pics of it, because I know it would make more sense if you could see it..

Hope this helps and good luck..
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Old 06-30-2011, 12:28 PM   #5
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2 winters ago we ran in-door nitro with good success. We used 3 - 36" chicken house fans pulling and 1-2 36" fans pushing fresh air in mounted on the opposite end of the pulling fans. When it got really cold we turned the pushers off. To keep people from passing out from nitro fumes we also seperated the Pit area from the racing area using 6mil plastic. It kept heat in and cold/fumes out.. We raced from Nov - April with no one complaining about fumes.

We also made it very clear that no Nitro cars were to be started in the Pit area.. I wish I had pics of it, because I know it would make more sense if you could see it..

Hope this helps and good luck..
So you created a suction from one end of the building to the other, right?
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Old 06-30-2011, 12:53 PM   #6
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So you created a suction from one end of the building to the other, right?
Essentially I guess you coudl say that.. It wasn't sealed, so I wouldn't call it a suction, but it moved the air through, and lept visibility up, and fumes down.

The track was built in an old Horse Barn, which was very drafty, what we did was open the to end doors, and built the fans one on top of the other. The fans were simply slid against the door jam, and then the sliding door was slid against the fans.. We did this on each end, and it worked well.. It might not work liek this for every application, but something could be made up..

If the building your looking at / have already has ventilation built in I suggest using that. If the vents don't have fans find a way to mount a fan on them to push the inside air out.. You won't need fans moving air from outside to in, but they can be handy..
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Old 06-30-2011, 01:15 PM   #7
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If you are having issues with bringing temps up in the building, you could get the large heaters (250,000 to 350,000 btu's) used in construction that are OSHA approved (they have t-stats and overheat protection). THey can run off of 1000 gallon propane or natural gas line. These heaters use a large fan to blow the heat from the burner into the air. I'm not sure how much they cost to purchase as we rent them for the cold season (about $250 a month) when we get into finishes in the condo buildings I build.
If you were to use these, put the butt end of the heater at the overhead door and close the door to the top of the heater. it will pull in fresh air and you may not even have to use fans at the opposite end to suck out either. When running they dont soot or put out any additional fumes.
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Old 06-30-2011, 07:33 PM   #8
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Old 06-30-2011, 08:03 PM   #9
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If using fans the fresh air needs to be drawn into the track area from one side and sucked out through a door in the opposite side of the building, making a cross wind of sorts. Air scrubber machines, not sure if that's the correct term, would be the best option for air quality, but the size and definitely the price is not realistic for r/c budgets.
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Old 06-30-2011, 08:23 PM   #10
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We race at an indoor track and they have 4 warehouse fans. All four suck air out. Nitro smell is not really an issue. they look like something on this page.

http://www.pattersonfan.com/VentilationFans.html
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Old 07-01-2011, 01:30 PM   #11
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what if ya got creative and put vents under the track at various spots then used ceiling fans to circulate the air and the warmer air down in the winter months just my 2 cents
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Old 07-01-2011, 01:52 PM   #12
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what if ya got creative and put vents under the track at various spots then used ceiling fans to circulate the air and the warmer air down in the winter months just my 2 cents
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Old 07-01-2011, 02:56 PM   #13
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use some grates and pipe to some big blowers kind of like a cold air return like on your furnace, nitro kind of lingers around the ground ....just a thought and the fans would keep the air moving down towards the vents
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Old 07-01-2011, 08:50 PM   #14
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Open windows and osolating fans (the fans that move from left to right) is all ive ever needed the bigger the fan the better and your eyes wont water and you can only just smell the fumes faintly..
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Old 07-01-2011, 08:56 PM   #15
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Quote:
Originally Posted by welderllj View Post
what if ya got creative and put vents under the track at various spots then used ceiling fans to circulate the air and the warmer air down in the winter months just my 2 cents
That was thought of, maybe running lines inside the big O pipe.
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