Code compliance: vent dryer to code
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Hope your kidding.
No. It's under 20 ft for sure. There's only one elbow in the run. Like I said, I took pictures from multiple angles that's why it seems like there seems to be a long run. Again, it's 9 ft going up, the *one* elbow and after that it runs about 7-8 ft across the ceiling of the bathroom to the outside. So it's basically just an L shape (up and across)gregzoll said:
It's not the length of the run. What could it be?
Go count again. There are three elbows. Yes it is the lengh of the run, along with the black plastic covered insulation, that is not needed, and add to it, that fire starting flex duct.
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You cut a ceiling joist, looks like you made up one funky sort of an elbow out of foil tape, used paper thin aluminum pipe behind a wall instead of steel stove pipe, foil flex line.
Actually incorrect. Each elbow is 15 feet, so in reality with change in measurements, you are talking around 72 feet of run. Here you go for a reference. http://www.dryer-ell.com/dryer_vent_duct_elbow_comparison.htm
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Can you move the dryer. A dryer vent can not span more than 25 feet. Each elbow is 5 feet. If you have three elbows that leaves you ten feet to work with. I would move the dryer against the other wall and try and just elbow out the rim joist. Can not be within 3 feet of any opening in house-door window, ect. You can not use foil tape or flex tube or sheet metal screws. The pipe has to overlap in the right direction. Dryer fires are very common, and are a very serious matter. If you plan on enclosing this vent then you will need to drill and pop rivet it together.
Actually that is a soffit box, so it really would not have mattered, but really it should be a little lower, or that vent should have only one elbow at that point, not that jog.
paintdrying, it is actually all over the board. Some places are stating 5 feet for a 90, another is 5-9. The site I linked to which I would trust more, is stating 15 feet for a 90 degree el. I would go with the last, just to be safe. I think that it is the 45 degree el's that are considered 5 feet of pipe run equal to.
this has distances for both smooth and ribbed pipe and different exterior vents
http://www.askthebuilder.com/clothes-dryer-vent-tables/
http://www.askthebuilder.com/clothes-dryer-vent-tables/
i get it now. In that reference it says one 90 degree elbow equals 5 ft, while the 45 degree angle equals 2.5, that is the minimum to meet code. the 15 foot = 1 90degree elbow is just a "study" that was done. seems like they just want you to buy their product. I'm going to stick to minimum.
so it looks like i can get by with 8 foot straight run going up then one 45 degree elbow(equaling to 2.5 ft), a 2 foot straight run following the 45 degree elbow. After the 2 ft straight run follows another 45 elbow (2.5 ft) into a 7 ft straight run going outside.
8+2.5+2+2.5+7=22ft.
also Should i keep that black insulation on the end of the run or does that not matter?
when does the run actually begin. does it begin out of the dryer box, or does it begin out of the dryer machine
if it does start out of the machine, then do we have to factor another 90 degree angle
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