ventilation

[Bluethunder3320]

whats that?

 

[Bluethunder3320]

oh wait basically i need to bypass the automatic turn on thing and just put a switch directly to the fan right.

 

[redsox985]

If it's a standard plug and wire that turns on when plugged in, you could clip one wire and hook it to a light switch and put it in a switch box and use the light switch as the on/off switch.

 

[r97]

the fan is supposed to be hard-wired (i think lol), i was suggesting you rip out the temp sensor in the fan (the temp sensor turns the fan on if your attic gets to hot), put the wires from the fan into a metal electrical box, install a light switch in the box, then cut off the last few feet of an extension cord, put the end of that in the box, wire it all up, plug it into the wall, flip the switch, hook the fan up to some pipe, ta-da no more toxic fumes!

 

[DustinWolfe]

Im dumbfounded that any of you would be ok with welding inside a house. Thats a linoleum floor for christ sakes. how old are you all didnt they teach you safety in shop class? linoleum floor,cardboard boxes,papers,books etc? really

 

[Bluethunder3320]

its fake plastic tiles.

its not like it will burst into flames.

im going to rip it out anyway to the concrete underneath.

not a big worry.

 

[DustinWolfe]

unacceptable but do as you wish

 

[redsox985]

Bottom line...weld outside.

 

[Doc Sprocket]

No kidding... /just too many hazards. You'd be amazed what will ignite with FCAW and SMAW spatter, believe me, I danged near burned down a restaurant! Sure, you can pull up the tiles... What about the adhesive underneath? And every other combustible and limited-combustible nearby. It's surprising how far a molten weld booger will roll across a floor...

With regards to ventilation, You're going to need some serious CFM capability to satisfactorily exhaust your weld area. A fan like that will not come cheap. Simple 4-6" dryer or stove duct won't cut it either. You would need to figure out the air volume of the room in CU.Ft, determine the desired air exchange rate, and base fan selection on that. Then, you have to calculate static pressure of the duct run that you plan, size the duct, and then bounce those numbers off the fan's specs, and recalc as necessary.

Then build/buy and hang an appropriately-sized hood to work under.

Basically, short of going all-out in building a dedicated welding shop,

DON'T DO IT!

ref's- I used to to commercial exhaust systems professionally, and have built 3 small spray booths.

 

[Bluethunder3320]

Well i bought a fire extinguisher anyways so im set.

Already took out the floor and got a big vent system and reconfigured the room so ill just see how it goes i guess.

 

[devino246]

Well i bought a fire extinguisher anyways so im set.

Already took out the floor and got a big vent system and reconfigured the room so ill just see how it goes i guess.

pics?

 

[Bluethunder3320]

Ill have some up tonight, im not done setting it all up yet.

 

[Flexibel_kampfe]

Word of warning.... keep those sparks away from that computer.... Welders are known for frying electronics in some... expensive equipment... Ie: la computadora..

Just weld outside man... open the garage door, and put the welder in there, then the sensitive part is dry. Then you can weld outside the garage... I wouldnt worry about getting a shock if its wet... it'll either kill you, or leave you alone(amps kill, not voltage...) I would guess the later.. Just keep dry gloves..

I mean, seriously, is it worth burning down your entire house, and possibily killing your entire family/your pets/yourself, just so you can make a go kart? You can even make yourself a kart, thats sheilded, like a pipeline welder is, to roll around outside... Do I weld in a cushy garage? No, mine is jam packed with woodworking tools, and garbage cans(probably enough fumes to blow up the place... lol jk).. Is it worse than outside? No, better? No.. No matter where you weld, its not going to be cushy, like indoors.... FOR A REASON... Everything is flamable..

Bottom line, do yourself a favor... Save the welding for outside. The effects could be deadly.

How old are you Blue? 10, 12? 14?!? This idea is obserd... I hope someone knocks some sence into you, before we are writing to your greiving mother, tell her how sorry we are, that you are no longer with us....

 

[Bluethunder3320]

im not gonna die or anything?

dont have a garage
it will be snowing soon

and my computer is in my room not my workshop.

all this post was about was how to vent just a little smoke, im not questioning if its even a little bit unsafe. you dont really get it, cement floor, covered walls, vent system. its not gaswelding people its flux core.

i dont see how cement can light on fire.

i hope you guys read this.

 

[redsox985]

Let's see some photos before I totally take down the idea.

 

[Flexibel_kampfe]

Thats you red, but I still stick with how unsafe it is. Flux is toxic.. Welding fumes are toxic... Certain metals, are toxic (manganese poisoning=parkensens, Monday Morning Fever, et cetera)...

Do as you wish, but short of a couple hundred dollars in ventilation, I dont buy it.

Not to sound like a jerk, but Suck it up sonny.. Winter is cold, but so isnt the ground, 6ft under...

 

[redsox985]

I do not think it's safe unless it's an engineered welding place like a true shop. I also like the et cetera, do you know latin?

 

[r97]

i'm learning latin, and something......... lol, still learning.

p.s. i do actually know what ect means, just in case there was any confusion.

 

[devino246]

Not to sound like a jerk, but Suck it up sonny.. Winter is cold, but so isnt the ground, 6ft under...

I dont want to start an online fight here, but look whos talking. You were gonna lay an OSB subfloor in your garage partially because:

My trouble is that the concrete really gets to my back, knees, and feet when working on projects after a long day.

 

[Flexibel_kampfe]

I do not think it's safe unless it's an engineered welding place like a true shop. I also like the et cetera, do you know latin?

I know a wee bit.. +Abséncía= In Absence
+Et Cetera= So on and so forth
+E Plurubus Unium: Out of many, One (every American should know this one.)
+Bona fides= good faith
+ Quid pro Quo= In essence an exchange.
And a few more, just to name a few.

I dont want to start an online fight here, but look whos talking. You were gonna lay an OSB subfloor in your garage partially because:

Thankfully you guys knocked some sense into me... and at the time I wasnt going to be doing any welding, but rather just woodworking... but thankfully I came to my sences.. I merely layed down some mat around my work bench, to help a little..(just old foot mats, that were getting thrown out...)