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Jet Air Cleaner - Hanging from Roof Trusses?

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Forum topic by GrizzlyBagWorks posted 04-05-2016 07:12 PM 665 views 0 times favorited 13 replies Add to Favorites Watch
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GrizzlyBagWorks

63 posts in 1058 days


04-05-2016 07:12 PM

Hi Guys, So Recently I picked up a pair of Jet AFS-1000B air cleaners. My garage is 22”x22” with probably 12’ ceilings. My plan was to hang each air cleaner from the lower chords of my roof trusses (Queen post style). The chords are 24” OC so I was going to split the 50# weight between two chords, with two hooks on each chord.

It doesn’t look like the trusses are designed to handle a load like this. They look like they’re designed more for a compressive load. I’ve been trying to do some research and keep reading mixed recommendations. Some people say 5# per square foot, others say don’t do it, while others comment they’ve hung engines.

Is it safe to hang these things from the lower chords? My garage is 22’ wide with Queen Post style roof trusses. Each air cleaner is ~50-55#, with the weight split between two chords.

Thanks guys!!


13 replies so far

View chrisstef's profile

chrisstef

15677 posts in 2474 days


#1 posted 04-05-2016 07:45 PM

Id hang em and not think twice about it.

-- rock, chalk, jayhawk

View KYSean's profile

KYSean

107 posts in 3064 days


#2 posted 04-05-2016 07:54 PM

Hang it. It’s not nearly enough weight to cause problems.

-- http://editedwrite.com

View Clarkie's profile

Clarkie

380 posts in 1308 days


#3 posted 04-05-2016 07:59 PM

I have two air cleaners hung up in my garage/shop, they have been up for at least 5 years now with no problems.

View conifur's profile

conifur

955 posts in 619 days


#4 posted 04-05-2016 09:21 PM

Call your building inspector where you live if you want to know for sure, I think you will fine though.

-- Knowledge and experience equals Wisdom, Michael Frankowski

View bigblockyeti's profile

bigblockyeti

3668 posts in 1188 days


#5 posted 04-05-2016 09:24 PM

You will be safe hanging them from any point in the span, you would almost certainly be safe with a single point load of 200lbs. at any point on any of the lower chords.

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JeffP

573 posts in 859 days


#6 posted 04-05-2016 11:27 PM

Probably could hang them just fine…but maybe that’s not a good idea for a different reason.

Sorry, I have lost track of the post, but someone here mentioned that putting air cleaner on the floor might make more sense…basically the idea is to pull the dusty air down away from the woodworker rather than up into his nose.

After I read that, my agreement with the concept and my laziness combined to convince me that was the only way to go. My Jet air cleaner sits under the right-hand wing of my table saw, and does an excellent job of keeping the air in my shop clean (in concert with a good DC of course).

It seems that everybody’s first thought is to put air cleaners up high. Not sure if this is to get them out of the way, or some notion they will be more effective there. I think maybe that is a good place, but maybe not the best place.

-- Last week I finally got my $*i# together. Unfortunately, it was in my shop, so I will probably never find it again.

View eflanders's profile

eflanders

87 posts in 1318 days


#7 posted 04-06-2016 12:45 AM

I agree with Jeff P. I used to have both air cleaners suspended from my shop ceiling and it wasn’t as effective as having one up high and one at floor level. This setup circulates the air better which means it is more effective at scrubbing the particles out of the air flow. logically speaking look at it this way, the dust settles as it is heavier than the air. While dust can be blown in all directions, it will eventually settle downward due to it’s weight.

View conifur's profile

conifur

955 posts in 619 days


#8 posted 04-06-2016 01:43 AM

I had 3 20” box fans with 2” pleated Merf 8 filters on them, 16$ for the fan, each, and the filters are $2 or 4 each.

-- Knowledge and experience equals Wisdom, Michael Frankowski

View clin's profile

clin

514 posts in 463 days


#9 posted 04-06-2016 04:22 PM

50 lbs is nothing for for trusses like that. Split between two trusses is 25 lbs per truss.

If you’re still concerned, get on a step ladder grab a truss and hang from it for a while. You’ll see the truss doesn’t care.

If you are still concerned, then put a piece of framing between the trusses where the filters hang. This will prevent the trusses from splaying. And put a frame member vertically from each truss up to the top truss frame member to reduce what little sag there could be.

While I don’t think it is necessary to add reinforcement, it’s a couple of $3 2×4’s, a few construction screws, and a 30 minutes of time.

-- Clin

View JoeinGa's profile

JoeinGa

7489 posts in 1474 days


#10 posted 04-06-2016 04:33 PM

This was my pole barn workshop back in TN. The trusses are 8’apart and I used 2X6’s to span between them in 3 places with a sheet of 5/8” plywood on top for each “shelf”. I had a total of 5 “shelves” up there and you wouldn’t BELIEVE what I used to keep up there !

Your trusses wont even know those 2 Jets are hanging there !
.
.

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View dbhost's profile

dbhost

5609 posts in 2699 days


#11 posted 04-06-2016 04:33 PM

I have the big Grizzly air cleaner mounted to my trusses, at an angle via 2×4s.

The 2×4s create the solid connection between two trusses, and the angle needed. The idea was to get, and keep the air moving in a circular motion. On the opposing diagonal I have a box fan mounted up that keeps the circulation going.

Yes I know you aren’t supposed to be running the filter when you are in there, but I live / work in coastal Texas and I MUST have cooled air or I WILL end up with heat sickness / stroke. So it is a trade off for me. Even without, if I was doing dual filters, I would still rig them like this to keep air moving in the shop when cleaning the air. Insures the max air volume gets cleaned with no dead spots.

Don’t worry about the weight on the trusses. Your trusses are no bigger than mine, and I trust mine to hold my considerable weight. 50# air cleaners got nothing on my fat tail.

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View TheGreatJon's profile

TheGreatJon

296 posts in 701 days


#12 posted 04-06-2016 04:38 PM

Everything has pretty much been said, but I’ll add one tidbit anyway. I was recently doing some rewiring in my shop, so I was up in the attic. I spent hours up there with all 215lb of my awesomeness resting on one or two struts at a time. There was nary a creak or groan. They will definitely take the weight.

-- This is not the signature line you are looking for.

View RobWoodCutter's profile

RobWoodCutter

113 posts in 2697 days


#13 posted 04-06-2016 04:49 PM

This has been hanging for years. One on this side, one on the other side, creates a circular flow around the shop.

Two angles supported by three rafters.

-- Rob-Yorktown "Shop's still not done, Tools are bought, Wood is bought, need to find time to start a project.."

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