More dryer vent cleaning information can be found here.
Can you run a dryer vent straight up.
When using a straight piece of flexible metal vent hose the maximum length allowed for safe ventilation is approximately 30 feet according to the appliance aid website.
Exhaust systems longer than the manufacturer s recommendations can extend drying times affect appliance operation and may encourage lint build up on pipe lining.
I then extended a piece of solid pipe straight up the back of the dryer from this fitting.
Often going straight up through the roof is the shortest route.
Ad i attached a second 90 degree fitting to this vertical pipe above the back of the dryer using more screws.
This causes two problems.
Now you re ready to run the dryer duct from the dryer to the vent cap.
I think the roof is a stupid spot to terminate clothes dryer vents because it s difficult to clean and it s a major contributor to ice dams.
Length of run also reduces efficiency.
Air velocity reduction from friction loss promotes lint build up and makes the dryer work harder to completely dry each load.
The laundry is located in the middle of our home in a hall closet.
Don t vent your clothes dryer through the roof.
The only reason that people vent dryers into water is to contain the lint so it doesn t fly.
Keep exhaust duct as straight and short as possible.
Cut assemble and tape the straight pieces photos 7 9.
Dryer vent hoses that are run in a straight line from the dryer exhaust to the outdoors provide the best ventilation and reduce the likelihood of trapped lint.
Push the lower elbow onto the dryer and the upper elbow onto the vent cap and then measure the distance between the two including the overlap at each end.
So the dryer has to vent vertically up through the roof.
Doing so would fill your attic with warm moist air that could rot the framing.
The longer the run the more friction loss is created which is why building code restricts total run length.
The vent becomes clogged with lint and.
When a dryer is in operation it s removing moisture and lint and venting it to the outside.
Great site dealing in all aspects of vent maintenance cleaning and solutions.
I had an appliance repair guy out to help with some propane connection issues and he said we shouldn t ever vent a dryer up as it makes it a lot more likely to accumulate lint.