[TheForge] positive pressure room

[Rick Korinek]

Just a note not forget the supply side of any exhaust system.  The make up
air has to come from somewhere.  A fan creating an exhaust rate as low as
200+ CFM can cause combustion equipment to backdraft if an opening for make
up air is not provided.

Rick Korinek
Island City Forge
Minocqua, WI
islandcityforge.com
 
715/358-5060 shop/studio
715-892-7425 cell

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Jerry Frost
Sent: Monday, March 12, 2007 1:01 AM
To: Sponsored by ABANA
Subject: Re: Re: [TheForge] positive pressure room

The bugs can have their corner Mikey. I don't paint, 
I'm too sensitive to low yield hydrocarbon solvents.

No deliberate pressure differentials in my shop at all, 
Walt.

The machine shop room will just be sealed off from the 
fab/smithing part with at least one window. The main 
part will have a down draft exhaust system, maybe an 
exhaust fan in the eaves if that doesn't do it.

My intent is to control dust and smoke as close to the 
source as possible. An in eave exhaust fan has to 
change out the room's entire volume several times over 
to clear it and it's just too cold in the winter to 
waste the heat. Especially seeing as I'm heating with 
wood and the birch isn't getting any lighter as I age. 
<grin>

Frosty
-------------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.

http://www.artmetalradio.com/


From: "Kathy" <keporter at comcast.net>


> Jerry,
> You forgot to include bugs. Spray paint seems to act 
> like a magnet for flying
> wrigglers determined to commit bugicide in the middle 
> of a perfect paint job.:-)
>
> Mikey
>


> From: theforge-bounces at mailman.qth.net 
> [mailto:theforge-bounces at mailman.qth.net]
>
> I'll say this again - You don't want a positive 
> pressure room for grinding.  You
> want negative pressure caused by your collection 
> system.
>
> Do you really want your dust blowing out into your 
> shop?  Paint booths are
> completely different because you don't want dust 
> coming into the room.
>

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