Thin/flexible duct causes fires, death? Use semi-rigid instead?
1770159
I just purchased this based on the description that states "UL 2158A Listed And Marked. Constructed of 4 ply aluminum foil laminate that will not support combustion." According to the article referenced below ""Only flexible ductwork meeting UL 2158A can be used as dryer venting." http://homerepair.about.com/od/heatingcoolingrepair/ss/dryerventsafety_2.htm
840011
I know we used 4" duct on all the exhaust fans. Some of them were oval and some were round, so I'm not entirely sure about this one. However, it was close enough that we could use flex duct without an adapter.
1893812
You can attach either soft or hard ducting to either side. (Inlet or outlet) I used a small self tapping Phillips screw for attachment. After I screwed into place I gently wrapped both sides with VAC ducting tape. Seems to work great, have that application in a couple different places.
1979906
I don't use a duct system because my shop is so small but many large tools on casters to move nearer to D/C. I use two Rockler 4" expandable hose (2' to 14') with blast gates at D/C to connect to tools I am using. A bit less efficient than permanent duct system connected to tools but I don't have the shop space so I move tools.
1204990
I highly doubt this will damage flexible s/s pipe. The rods and brushes are flexible. Works great on my pellet stove pipe.
1328527
I attached one end of the Lambro flexible aluminum duct to the crimped end of a 5 in. x 60 in. 30-Gauge Galvanized Round Sheet Metal Pipe from Home Depot and the other end to Speedi-Collar SC-05D 5-Inch Diameter Take Off Start Collar with Damper from Amazon.com. No transition pipe was needed, I used 5-1/2 inch metal worm drive clamps to fix the Lambro duct to the galvanized pipe and to the starter collar. Advice: do not try to stretch the Lambro flexible aluminum duct to more than 48 inches. If you overstretch it, it damages irreversibly
2027998
I would think if you had a flex duct over your work area and had the fan leading to an exterior wall at 400cfm it would vent the fumes. I used to work on circuit boards (soldering) while in the Navy and we had fans in the overhead with a flex duct on our workstations to vent the fumes outdoors. Being you are making jewelry I would think by putting a hood over your work area and as the fumes rise the fan would draw it out of the space.
1153920
There are duct pipe connectors that can adjust through various angles. I suggest looking for one of those and connecting it between the two. Sorry I don't know what they are called but you can find them at Home Depot.
422695
No not really. The best way is to weld it. That way don't restrict any air flow from getting out.
397238
No, it's purpose is to shield from heat. So you would need either a blanket type material to wrap around the duct or a wrap like HEI.
275815
I use a box spring and am not aware of any fire hazard. I've had no issues.
1301378
I personally use this item and can vouch for it. The only way this is a fire hazard is if people do not use it correctly. Yes there will be defective units, yes there may be accidents, but overall most fires started by these are caused by people who shouldn't even own pets. Putting a towel over this device or putting stuff around it is not smart at all and is in fact dangerous. The device itself as far as I have seen does not catch fire, and in fact does not produce enough heat TO catch on fire. I put blame on the users, not the item or manufacturer except in the case of defective units sold. Hope this was a reasonable answer. I love this product. UPDATE: Adding to my previous comment, it seems as though there was a curse on this company as a whole bunch of people got faulty devices, poor things. Mine is still working great, no shorts. Seems to me like there were assembly issues within the manufacturer building or they got some terribly made pieces to construct these with. I am only glad that mine was not one of the ill-fated defects!
95165
WE purchased a 6" piece of duct in the heating department at homedepot, we also picked up a reducer from 6" to 4" which allowed us to use the venting for a dryder. But we had a good 12feet until the outside of the house, so we only attached the 4" at the end 2 feet. Now for me the opening on this unit was a little under 6" so I had to use tech screws to attach it along with some duct tape. If you use a reducer - Do Not use it right at the beginning. The fan will sound obnoxiously loud and you will be unhappy, trust me. Reduce as close to the outside only if you have to. This exhaust was used for a basement and I needed a side vent. WE purchased a 6" piece of duct in the heating department at homedepot, we also picked up a reducer from 6" to 4" which allowed us to use the venting for a dryder. But we had a good 12feet until the outside of the house, so we only attached the 4" at the end 2 feet. Now for me the opening on this unit was a little under 6" so I had to use tech screws to attach it along with some duct tape. If you use a reducer - Do Not use it right at the beginning. The fan will sound obnoxiously loud and you will be unhappy, trust me. Reduce as close to the outside only if you have... » Read More WE purchased a 6" piece of duct in the heating department at homedepot, we also picked up a reducer from 6" to 4" which allowed us to use the venting for a dryder. But we had a good 12feet until the outside of the house, so we only attached the 4" at the end 2 feet. Now for me the opening on this unit was a little under 6" so I had to use tech screws to attach it along with some duct tape. If you use a reducer - Do Not use it right at the beginning. The fan will sound obnoxiously loud and you will be unhappy, trust me. Reduce as close to the outside only if you have to. This exhaust was used for a basement and I needed a side vent. « Show Less
1818218
It's actually just R 1.04 (very low) - unless you put a continuous 3/4" air gap around it with spacers - which almost no one ever does. Then it goes up to R-4 or something. Here's a balanced article with the pros and cons: http://bit.ly/a4VRz0The stuff is pretty and easy to work with and I used it one some ducts in my basement. But know its limits and certainly don't mistake it for "high performance". The stuff is only 5/16" thick and you can't magically change the laws of physics with shiny foil.
1448809
I bought a piece of flex hose and an adapter that is used to connect RVs to the sewer at campgrounds. Got it at Home Depot. There was a hose connector and hose. I sliipped the connector over the end of my blower and used a single piece of duct tape. Works incredibly well. Without having flex this device is useless
1617560
I have never tried. I have had to cut them shorter. I have also use the two section separately. The whole deflector will extend to 32" long. I have used the extension binder clipped to a small hardware deflector to make more since some areas I do not need the extension. Any time I have had to redirect heat under cabinets or large objects that require a long run I have had ducts made by a metal shop.
1265286
Krista, Yes, this is considered soft wire, you can bend to any position. Should be strong enough to run almost anywhere. It is not fire proof, so be careful not to run near hot items. Cheers, Charlie