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Offlineanthiawe
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looking at this flowhood - no knowledge of flow hoods
    #23562409 - 08/21/16 09:00 AM (7 years, 5 months ago)

http://www.kijiji.ca/v-business-industrial/city-of-toronto/laminar-flow-hood-air-flow-clean-bench-workstation-160557/1191620406?enableSearchNavigationFlag=true

has anyone tried a flow hoood like this? it appears that the filter is at the top and the air would blow down. would this work for mycology?


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23562653 - 08/21/16 10:52 AM (7 years, 5 months ago)

Hey anth, that's more or less the same style we used in the lab. I'd check reviews on the model but would say it's legit.  Just curious, why not build one to your own specs?


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Offlineanthiawe
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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23562671 - 08/21/16 10:57 AM (7 years, 5 months ago)

well i've been checking out the micron filters, i feel that where I am in Canada all the shipping charges and what not the price would end up around the same place....plus i'm crazy busy with a full time job and part time mushroom production...


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23562695 - 08/21/16 11:07 AM (7 years, 5 months ago)

"plus i'm crazy busy with a full time job and part time mushroom production..."
I hear that!  Man, no filter manufacturers in Canada?  Shipping costs suck...


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23562706 - 08/21/16 11:11 AM (7 years, 5 months ago)

there are, just hard to find. a lot of the canada supplier threads on here have dead links. I've been hunting around and around but it feels so daunting!


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23562738 - 08/21/16 11:24 AM (7 years, 5 months ago)

Agreed...there is a lot of stuff out there and it's hard to know what's a solid product/investment, especially considering the cost. I'm thinking of biting the bullet and ordering one from FP. Let us know what you decide on.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23562749 - 08/21/16 11:28 AM (7 years, 5 months ago)

I'd love that series 1 from FP...but shipping costs :facepalm3:


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23562819 - 08/21/16 11:54 AM (7 years, 5 months ago)

My home build.My camera sucks on this tablet.



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Offlineanthiawe
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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23562822 - 08/21/16 11:56 AM (7 years, 5 months ago)

looks great quadman. I requested a quote from FP on their 24x12 micorn filter, but scared of shipping costs.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23562878 - 08/21/16 12:18 PM (7 years, 5 months ago)

I know shipping can be crazy,even here in the states. Always have to watch when ordering online.


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Offlineanthiawe
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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23566522 - 08/22/16 04:27 PM (7 years, 5 months ago)

there is a micron filter from FP that will ship and everything to my home for  US $ 216.91

that a fair price? or sky high?


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23566565 - 08/22/16 04:40 PM (7 years, 5 months ago)

Way better deal than the Series 1...You're looking at the larger filter, correct?  Should be able to build it out way cheaper and get more filter area.  I'm looking at either the 24"x24" or the 24"x36".  I've a fan already so that helps a lot.  Interested to hear what you settle on.  I just think FP is gonna have a legit hepa so for me I'm paying for piece of mind.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23566710 - 08/22/16 05:29 PM (7 years, 5 months ago)



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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23566955 - 08/22/16 06:48 PM (7 years, 5 months ago)

Well, still better than the price on their box, which is surely nice but dang.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23566988 - 08/22/16 06:58 PM (7 years, 5 months ago)

excellent point.
any idea what kind of blower i would need?  They are easy to come by around here so no extra shipping costs!


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23567028 - 08/22/16 07:11 PM (7 years, 5 months ago)

If you haven't seen this, here's a link to fungi fun: http://www.fungifun.org/English/Flowhood
I'm gonna follow their design. They have the chart to match the blower as well. Looks pretty good.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23567036 - 08/22/16 07:14 PM (7 years, 5 months ago)

thanks Mycolorado,
:raisemyglass:


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23567275 - 08/22/16 08:22 PM (7 years, 5 months ago)

Ant, I didn't see any specs for static pressure on that particular filter. You have to have pressure to calculate blower size.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23567458 - 08/22/16 09:27 PM (7 years, 5 months ago)

Quote:

Quadman said:
My home build.My camera sucks on this tablet.





Hey Quadman, what size is your filter and fan?  The FP filters are all 1"SP.  I'm gonna have to get a better fan. After looking at its specs it only pushes around 480 cfm free...bummer.



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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23567473 - 08/22/16 09:32 PM (7 years, 5 months ago)

Ha, you bet!  I'm gonna have to rethink the fan and build.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23567783 - 08/22/16 11:07 PM (7 years, 5 months ago)

Got filter off eBay (Camfil Megalam)I have to measure  I've forgot. Filter was $60 total. Fan from Surplus Center my favorite go to place for builds.Fan was $40 plus shipping it is a 24v double squirrel cage fan 3 speed. Spent another $40 for a heavy duty power supply. It looks identical to the one Grower has. Those filters were a steal was going to get a spare after thinking on it but he had sold all of them. Mine pushes 684 cfm free on high.


Edited by Quadman (08/23/16 09:33 AM)


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23568470 - 08/23/16 08:43 AM (7 years, 5 months ago)

Nice scores!


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23568574 - 08/23/16 09:31 AM (7 years, 5 months ago)

Actual filter size 38"x15". There are bargains out there just have to be patient. Surplus Center has all kinds of blowers reasonable.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23569468 - 08/23/16 03:20 PM (7 years, 5 months ago)

where do you live quadman? IL means illinois right? most of ebay for canadians is still shipped from the states unfortunatley


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23569615 - 08/23/16 04:17 PM (7 years, 5 months ago)

Yep Illinois. I see quite a few items on eBay coming from Canada. Is it cheaper to send to the States from Canada. Than to Canada for the States?


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23569660 - 08/23/16 04:39 PM (7 years, 5 months ago)

i think it depends on who is sending on whats being sent. both countries have import taxes on certain things but the market in the US is so mush bigger than here so things can be provided cheaper (200 million vs 30 million)....but if you see a decently priced hepa filter shipping from Canada let me know!


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23569667 - 08/23/16 04:41 PM (7 years, 5 months ago)

I have nothing but time I'll try to keep an eye out for you.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23570718 - 08/23/16 09:23 PM (7 years, 5 months ago)

I'm currently working on building Gr0wer's flowhood- have the same HEPA and blower (The HEPA was only $130!!!) - just need the lumber and the weather to fab it! And honestly I wouldn't have it any other way- I want to be as hands on/DIY as I can with my mycology- gives me more (selfish) pride. Plus I want to engrave it with "TravelAgency" (with a space rocket connecting the top of the T and the cross point of the A. And probably also the Logo I'm working on for my hopeful future business venture.

Edited to add : if you want links to my/Gr0wer's HEPA and blower I can dig up some links for you.


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Edited by TravelAgency (08/23/16 09:24 PM)


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Re: looking at this flowhood - no knowledge of flow hoods [Re: TravelAgency]
    #23571160 - 08/23/16 11:11 PM (7 years, 5 months ago)

Picked this up for $20 today.  I pulled it all apart and cleaned it best I could. It was terribly greasy and dusty.  Pretty sure the motor's cooked or close to.  Anyway, I slapped some paint on it and hopefully can find a working motor at the same place.  It's a 1/5 hp so should do fine for a larger filter. Fan issue is kinda solved. 


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OfflineTravelAgency
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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23571221 - 08/23/16 11:28 PM (7 years, 5 months ago)

Hey- if you can get a working blower that will match the cfm of your HEPA (crucial for laminar flow) for under a hundred - run with it! My blower was just under $300. Do you know the specifications on it?

By the by- I've been absent in the time that you joined this forum (my company filed for bankruptcy a second time) but I would love to extend you a welcoming. Thanks for pursuing a burgeoning science that seems inaccessible to most. You are now amongst MycoGiants- read as much as you can on this forum (just be sure to check the date it was written as even in my tenure on the site the science has progressed quite a bit) and don't be afraid to ask questions (unless it's "what is a greenhouse" - in which case use the search engine- but I see you already have a pretty good understanding of fungi). The people here are wonderful and are in a constant state of excitement for our fellow myconerds and for the advancements that we citizen scientists make.

If you'd like a wedge - check my journal- I'd love to send you one!

Once again a belated welcome to you :wave: hope you enjoy your stay as much as I do

:seriousthumbsup:


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Re: looking at this flowhood - no knowledge of flow hoods [Re: TravelAgency]
    #23571260 - 08/23/16 11:39 PM (7 years, 5 months ago)

Whoa; thanks, TA!


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23571274 - 08/23/16 11:43 PM (7 years, 5 months ago)

Absolutely my new friend- I'm all about extending the mycoweb through the interweb- :lol: seeing my babies flourish under another's hand is exciting to me :thumbup:


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Re: looking at this flowhood - no knowledge of flow hoods [Re: TravelAgency]
    #23572116 - 08/24/16 07:58 AM (7 years, 5 months ago)

Nice looking blower bigger is always better. You can always throttle it back some.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23576930 - 08/25/16 05:35 PM (7 years, 5 months ago)

Ant and MyC check out this filter on eBay 181869778255. Large filter even a best offer  :dancer:


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23577006 - 08/25/16 05:52 PM (7 years, 5 months ago)

looks good, but where is a pic out of the box??


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23577109 - 08/25/16 06:18 PM (7 years, 5 months ago)

comes to $133CAD total with shipping and everything


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23577115 - 08/25/16 06:19 PM (7 years, 5 months ago)

Just ask I'm sure they will take a pic.i think it is almost identical to mine. You can make an offer.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23577173 - 08/25/16 06:31 PM (7 years, 5 months ago)

Quote:

Quadman said:
Ant and MyC check out this filter on eBay 181869778255. Large filter even a best offer  :dancer:



Can't link to it...


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23577208 - 08/25/16 06:40 PM (7 years, 5 months ago)



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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23577218 - 08/25/16 06:41 PM (7 years, 5 months ago)

Thanks, anth and quad!  Enticing...


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23577225 - 08/25/16 06:44 PM (7 years, 5 months ago)

apparently its brand new, but surplus....


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23577322 - 08/25/16 07:07 PM (7 years, 5 months ago)

They are usually dated and once expired they remove from inventory, even though they are brand new and still in original packaging.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23578496 - 08/26/16 03:42 AM (7 years, 5 months ago)

I totally bought one ahaha


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23578932 - 08/26/16 08:23 AM (7 years, 5 months ago)

Quote:

anthiawe said:
I totally bought one ahaha



Awesome!  :thumbup:


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23579149 - 08/26/16 09:44 AM (7 years, 5 months ago)

Cool your on your way to a build! It is big but enough to handle any task.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23579391 - 08/26/16 10:49 AM (7 years, 5 months ago)

Any idea the blower specs I need.....me and math are enemies


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23579504 - 08/26/16 11:16 AM (7 years, 5 months ago)

Ant.. blower calc. I believe this the same size as mine. Filter measures 38" x 15" = 570"
570" ÷ 144"= 3.96 sq ft
Stamets recommends 100 cu feet per minute per square foot for laminar flow
So rounding off you need 400 feet per minute.
Now when you get your filter the label show what static pressure is required.
For example mine has static pressure of .4 " and if you use a prefilter (regular cheap furnace filter) you will add approximately .12 " so total pressure .52"
So I needed a fan that could move at least 400 cu feet at .52" pressure
You can run more I think I've read up to 150 feet and still maintain laminar flow a little more is good to allow for filter clogging . You can always cut back with speed controller or choke off intake.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23582525 - 08/27/16 05:10 AM (7 years, 5 months ago)

the one coming is 17hX41W so 697"

why did you divide by 144"?


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23582540 - 08/27/16 05:22 AM (7 years, 5 months ago)

I think i need 500cu feet per minute. and once i see the static pressure required on the filter i can figure out the exact blower specs i need.

your .4 and .12 for filters =.52 how did you calculate that?


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23582579 - 08/27/16 06:09 AM (7 years, 5 months ago)

Quote:

anthiawe said:
the one coming is 17hX41W so 697"

Your filter has an extruded aluminum frame it's not all filter

why did you divide by 144"?




There are 144 square inches in 1 square foot 12"x 12" = 144


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23582584 - 08/27/16 06:17 AM (7 years, 5 months ago)

Quote:

anthiawe said:[/

your .4 and .12 for filters =.52 how did you calculate that?




I used my filter as an example, as I said  once you get your filter the static pressure should be on its label. You will use that number to calculate fan size

.12" is what I've read as kind of the standard for a prefilter (cheap furnace filter)
Of course you can use a heavier prefilter , but it will be more pressure to pull air through it


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23586454 - 08/28/16 10:38 AM (7 years, 5 months ago)

ok! i think i'm getting it.....but ya know what we arts degree students are like when we get around number....

thanks for your help quadman


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23587070 - 08/28/16 02:10 PM (7 years, 5 months ago)

Your welcome, it's not rocket science and your probably close with 500 feet. I do know your filter is thicker than mine ,so it will probably take more pressure. My pleasure.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23626174 - 09/08/16 03:22 PM (7 years, 4 months ago)

i received the filter in the mail today...its real big. hopefully get the blower this weekend, but will check back with my math and what not to see if i'm correct


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23626261 - 09/08/16 03:48 PM (7 years, 4 months ago)

its says on the top of the filter

365 - cfm
0.002 - %PEN
.30 W.G

soooo is this just meaning  i need a 365 cfm blower?


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23626356 - 09/08/16 04:17 PM (7 years, 4 months ago)

The 365 CFM is the test flow at .3" static pressure.

Your filter is 5 sq ft.  You want 100 feet per minute of flow from each square foot of filter area, for a total of 500 CFM.  That's the bare minimum.  Increase this number by 20-50% to account for losses and inefficiencies.  That's 600-750 CFM.

Your filter has a pressure rating as well as a flow rating.  The test flow on the filter, 365 CFM @ .3", is roughly half the airflow you will be pumping through it, so because airflow and pressure are typically proportional in these filters, double the airflow, double the static pressure.  So your filter will experience .6" of static pressure.

You'll want to add a prefilter to increase the longevity of your flow hood.  These are typically .1".  Your total static pressure from both filters is going to be .7" 

IMO, you'd need a blower in the ballpark of 700 CFM @ .7".


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Re: looking at this flowhood - no knowledge of flow hoods [Re: shroombasa]
    #23626363 - 09/08/16 04:19 PM (7 years, 4 months ago)

whoa, thanks shroombasa,

what does the W.G stand for to become static pressure?


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23626396 - 09/08/16 04:36 PM (7 years, 4 months ago)

My pleasure.

It stands for 'water gauge'.  I think it's based off of how they used to measure barometric pressure, so inches w.g. is just a unit.


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Re: looking at this flowhood - no knowledge of flow hoods [Re: shroombasa]
    #23626960 - 09/08/16 07:27 PM (7 years, 4 months ago)

water gauge =water column
1" water gauge =1/28 psi, since 1psi is 28" water gauge.


Edited by isko (09/08/16 11:37 PM)


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Re: looking at this flowhood - no knowledge of flow hoods [Re: isko]
    #23648839 - 09/15/16 09:21 PM (7 years, 4 months ago)

Replaced the old, fried 1/5hp motor with a new 1/3hp motor. No clue what it pushes...prolly a formula based on cage dimensions, rpms, etc., but should be sufficient for a larger filter...looking for a 2'x3'.  Anyway, $20 for the fan, $10 on paint and $50 for the new motor.  Runs like a champ!  Gonna look cool sittin on top of the box as well.  Here are the before and after:


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23649074 - 09/15/16 11:13 PM (7 years, 4 months ago)

Nice mate! Lookin fly!

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Re: looking at this flowhood - no knowledge of flow hoods [Re: TravelAgency]
    #23649549 - 09/16/16 04:41 AM (7 years, 4 months ago)

nice blower Mycolorado! if there is a model number on the device somewhere you can search it online for its cfm. I got one from a friend and i'm having the same problem but it has its model name and number still on it so i was able to tell...or just do the flame test through the filter?


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23650153 - 09/16/16 10:47 AM (7 years, 4 months ago)

Hay anth,  it was pretty old and all the info decals were long since gone. The cage is a good size...maybe 8-9" diameter and 10" long...it's a fairly large unit.  I'll get it figured out.  How's your build coming?  Got pics?


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23650861 - 09/16/16 04:07 PM (7 years, 4 months ago)

good luck!
well i've got the filter got the blower working, just got to put them together with the wood, hopefully it will be done tomorrow!


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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23654886 - 09/18/16 06:46 AM (7 years, 4 months ago)



not quite done yet, just need to box the blower and get some prefilters on it



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Re: looking at this flowhood - no knowledge of flow hoods [Re: anthiawe]
    #23655075 - 09/18/16 09:18 AM (7 years, 4 months ago)

Nice work!  How deep is the plenum?  Looks like a nice slim design.  I think I've read 4:1 on depth to filter depth.  Anyway, can't wait to hear how it works for you!


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Mycolorado]
    #23655220 - 09/18/16 10:23 AM (7 years, 4 months ago)

:popcorn: :like:


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Re: looking at this flowhood - no knowledge of flow hoods [Re: Quadman]
    #23656018 - 09/18/16 03:12 PM (7 years, 4 months ago)

its not that slim, its just the picture! its actually 22 inches.


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