Home Forums Explore Media Glass Art Let’s Talk Glass Technical Forum HANGING vent hood?

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  • #984015
    DebbieSue
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        My vent hood is about 1 1/2 feet in front of where my torch is located, hung against the wall. I’ve noticed many people have hanging vent hoods that are hanging directly over the torch area. Are these special vent hoods or are they regular ‘against the wall’ hoods that you have creatively adjusted to hang by chains? My husband says they don’t have any of these at Home Depot.
        I think my vent hood is still missing a lot of the fumes produced by my torch, mainly because it is so far back from the torch. When I hold a cigarette over the torch end, sometimes the smoke appears to be pulled up and forward toward the vent, and sometimes it blows around in other ways (depends upon the breezes coming in the open window). But my husband says it CAN’T be put any closer to the torch (in other words, pulled forward). And I realize it really can’t if it HAS to be mounted on the wall.
        It just seems to me it would pick up a lot more of the fumes if it were directly above the torch.
        I’ve included a pic. You can see the window to the left of the torch, which is where breezes come in. So anyway, do these types of vent hoods HAVE to be hung against the wall or can they be rigged to hang? If they can’t, then perhaps I need to cut my table to get that torch in closer to the vent hood…

        Debbie

        #1025966
        Moth
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            Most standard range hoods have holes drilled in them for screw mounting either into the wall, or through the top into a cabinet.

            I installed mine myself, by running steel cable from cup hooks anchored in my ceiling. I used ‘S’ hooks to hook into the screw holes that were already drilled into the top of my range hood. It hangs directly over my torch, about the same height from the torch as yours already is.

            Keep in mind, some of these kitchen range hood fans have plastic blades. They can get hot in this application. Mine has plastic blades, but has never gotten hot enough to melt or warp. I would say though, that you torch could very well be hotter, so your mileage may vary.

            Another thing…instead of moving the range hood out further, perhaps you could construct some sort of air funneling device around the hood, to concentrate the pull of the fan to a smaller area.

            You could simply use some metal flashing to build dropped sides around the range hood, and it might help.

            I think lots of people do that. If you haven’t done so already, check out the thread in the tech forum titled, ‘can I see your work area’. It has pictures of almost everyone’s studio set up and lots of good advice on how to safely operate in your workspace.

            Take care.
            ~~Mary

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            #1025967
            Moth
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                And, yes, it would be a whole heck of a lot easier to cut a notch into the table and move the torch in closer than it is to move the range hood. Believe me. LOL

                ~~Mary

                My Website- Last Update 5/14/06
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                "Success is the ability to go from one failure to another with no loss of enthusiasm."
                --Winston Churchill

                #1025971
                DebbieSue
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                    I installed mine myself, by running steel cable from cup hooks anchored in my ceiling. I used ‘S’ hooks to hook into the screw holes that were already drilled into the top of my range hood. It hangs directly over my torch, about the same height from the torch as yours already is.

                    Do you have a pic of your setup? Sounds like what I’m talking about…

                    Debbie

                    #1025970
                    Zooziis
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                        Instead of hanging by chain my dad helped install mine from a shelf. He took a piece of plywood, used shelf brackets to install this to the wall at a height that allowed for the fan to be installed under the shelf, and have the base of the hood be at 24″. Then we cut a whole in the shelf to allow for the vent pipe to come up through. I can get you photos if you are interested, and if this isn’t clear. But in the end, I have a hood mounted firmly above my workstation, so it doesn’t move like it would if it were on a chain. Good luck! After reading all the posts on here about ventilation, I’m really glad to finally have mine done up well.

                        By the way, in other threads they’ve suggested using incense, and placing it at the end of the torch. If the fan sucks it out then you are all set. I guess you are not supposed to be able to smell the incense when you are sitting at the torch, if it’s done right.

                        Hope this helps…

                        Amy

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                        #1025969

                        Instead of hanging by chain my dad helped install mine from a shelf. He took a piece of plywood, used shelf brackets to install this to the wall at a height that allowed for the fan to be installed under the shelf, and have the base of the hood be at 24″. Then we cut a whole in the shelf to allow for the vent pipe to come up through. I can get you photos if you are interested, and if this isn’t clear. But in the end, I have a hood mounted firmly above my workstation, so it doesn’t move like it would if it were on a chain.
                        Hope this helps…

                        I love this idea! Thanks for posting it.

                        Steph
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                        #1025965
                        KayB7
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                            I hung mine from chain…..just lined the existing mounting holes in the hood using rubber grommets, inserted a large eye screw, and fastened with a lock nut from the inside of the hood. Attached chain to the eye screw, then hung from the ceiling using heavy duty plant hooks. If you place your ceiling hooks wider than the width of your fan (in both directions) it stops most of the movement. I know…not very clear…but say if your 4 chain attachments on the hood form a square that is 20 inches wide and 10 inches deep, then place the hooks on the ceiling to create a square that is more than 20 inches wide and more than 10 inches deep. I added about 3-6 inches to each measurement. The bigger you make the square on the ceiling, the less movement you have in the hood. Of course, you don’t want to get ridiculous and end up with a four-legged chain spider spread across the ceiling..haha.

                            #1025968
                            Kurthj
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                                Most of what I have read says that a normal range hood should be hung 8 to 10 inches in front of the torch and 24 to 30 inches above the torch. If you can arrange these measurments by mounting on the back wall then you won’t need a baffle on the back side. If the hood is hanging then baffles 12″ down from the back and sides should capture all the flame products, It has to do with the velocity of the expelled gases. They are moving very fast. These figures were for a hood that moved 250 to 300 CFM. The hood is of metal construction,
                                Good luck,
                                Kurt :)

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