[TheForge] Re: Gazinta

[Justin Fellenz]

Hey, Jerry

Can you elaborate a little on your in-floor exhaust system? Never
thought of doing such a thing but I love the idea of having the smoke
and attendant radon daughters, etc, go down instead of up into my
helmet and lungs. Mostly I wonder how you get enough suction to do pull
smoke down if the vents are at floor level and you're welding on a
table, and how you keep the crap out of the system, or how you clean it
out when it gets full of grinder dust, metal shavings, leaves, or
water....do you have a huge fan (and are the gazintas where the air
goes in, or is there a grate?) and cleanout locations? Can you just
hose the whole system out?

Thanks,

JRF

--- Jerry Frost <frosty at customcpu.com> wrote:

> Gazintas.
> 
> I have 46 gazintas IN my shop floor. I can say IN THE shop floor now
> because 
> there's actually 6" of concrete surrounding them! I can hear the
> power 
> trowel right now. <grin>
> 
> Anyway, they're 2 1/2" x 3/16 wall sq tubing with 3" x 1" x 1/4" wall
> sq. 
> reinforcing band at the top. They all sit on a subfloor exhaust
> system and 
> are welded to the rebar in the floor for grounding. They're spaced on
> 4' 
> centers and cover the entire shop floor except the smalish area of
> the 
> machine shop.
> 
> I have pictures but the photoaccess site says the files are too small
> and 
> won't accept them. <sigh>
> 
> So, when the shop itself is covering the floor I'll have a large grid
> I can 
> use to jig projects, mount vises, grinders, tables, etc. etc. The 
> welding/cutting "table" will be the piece of bar grate I scrounged
> some 
> years ago. It's legs will socket into the gazintas so it'll draw
> smoke and 
> fumes down into the floor and out.
> 
> I didn't put in any BIG gazintas caus I didn't know where I'll want
> em and 
> sure as concrete is grey I'd put them (however many I put in) in
> exactly the 
> wrong place. I figure I can't go too far wrong with a whole bunch of
> small 
> gazintas on a nice even grid. If they're in the wrong place, I'll
> just shift 
> the place a bit. <grin>
> 
> As soon as I figure out why my pic files are too SMALL for
> photoaccess I'll 
> post a couple.
> 
> Frosty
> ------------------------
> If it ain't forged
> it ain't real.
> Wrought iron is.
> The FrostWorks
> 
> Meadow Lakes, AK.
> 
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