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Old 2010-11-15, 12:16 PM
newhomeowner20092009 newhomeowner20092009 is offline
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Default Dryer Venting - Builder and Home Owner

Question as per the venting of my dryer to the outside..

Long story short my dryer keeps shutting down when it gets too hot, I have had sears out to replace this part twice and they tell me it's the venting on the outside of my house.

Apparently my vent, is above my garage under a lip. Which means it's in a covered corner, and it has a short lip of brick in front of it as well, about 2 feet in front of it. So I think the air from the dryer isn't venting actually outside but hitting the small lip and going back in, hence the over heating dryer..


Any tips? Advice?

I am not too sure what code or conduct is as as per Dryer venting.

Thanks
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Old 2010-11-15, 03:33 PM
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ensure the dryer itself is not plugged up - imagine sears did this?

how long is the dryer vent run, how many elbows, and what is it made out of?

has anyone done some tests to ensure the vent pipe is not partially plugged?

are you getting a lot of air flow at the exterior vent?

is the vent cover lint free?

you can get a kit to clean out the pipes or get that done by an hvac company

can you post a pic of the outside setup?

Ontario BC says it must be vented to outside - thats all it says

Last edited by good2know; 2010-11-15 at 03:35 PM. Reason: add code bit
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Old 2010-11-16, 07:48 AM
newhomeowner20092009 newhomeowner20092009 is offline
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Sears is now coming for the second time to replace the Therma Fuse. Which they tell me blows pretty much when the dryer gets too hot.

I have had the inside venting checked for blockages. Builder came by yesterday to check outside for blockages.

Looking at the connection and the length it seems my vent may be very long from the basement to where it vents outside. And guessing from the turns to get where it is outside, I am sure there are a lot of bends.

I know for every 45 degree bend you have to take back like 2.5 ft from the length and for a 90 degree bend you need to take back 5ft on the length.

Yeah trying to find specs for exactly how it should be vented is hard to find on the net.

I will try and get a pic.
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Old 2010-11-16, 10:17 AM
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check your dryer specs - it probably specifies a max length of duct - usually 20 ft or so

I think you are correct on the numbers for elbows - so you can calculate your total length

is it smooth steel pipe with no screws, and the joints taped with aluminum?
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Old 2010-11-16, 10:21 AM
newhomeowner20092009 newhomeowner20092009 is offline
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To be honest IU can only see what the dryer has been connected with and what kind that is. I have no clue how many elbows or if it's attached by tape for the sections in the walls. BUt I am thinking mine going from the basement out through the top of my garage, I am guessing it's more than the max of 25 ft
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Old 2010-11-16, 10:41 AM
TKG26 TKG26 is offline
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Equivalent to straight pipe
Typical 90° elbow = 5 feet
Typical 45° elbow = 2.5 feet


Flex pipe will constrict airflow more than rigid vent pipe over the same distance by as much as 25%. That means that if you are using flexible duct the maximum distance to the outside wall should not exceed 18¾ feet. As most straight pipe maximums are 25ft including all elbows and bends.
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Old 2010-11-16, 02:17 PM
newhomeowner20092009 newhomeowner20092009 is offline
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Well I have no clue what the builder used as it's in the wall. I know I used Flex pipe when installing my dryer.?

I have sears coming to replace the part again, and will have to get Builder out again to have a look.

My concern is the outside vents location...It's pretty covered and hidden.
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Old 2010-11-16, 02:27 PM
Mark & Lynda Mark & Lynda is offline
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Quote:
Originally Posted by newhomeowner20092009 View Post
Well I have no clue what the builder used as it's in the wall. I know I used Flex pipe when installing my dryer.?
The builder wouldn't of used flex pipe. They only use rigid smooth pipe.

Replace your flex pipe with a proper rigid one. Flex pipe is garbage.
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Old 2010-11-16, 03:15 PM
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nh2009 regarding the picture, the vent pointed down doesn't concern me but I would turn it so it blows out and away from the building

fyi vents will build up to the point the are full, then they get saturated and will then leak water in the ceilings/walls

also lint build up in the pipe is a fire hazard - so if your thermal shutdown switch fails ...

I would ask the builder to clean the pipes end to end

if you use dryer sheets suggest you stop - they make things very sticky
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Old 2010-11-16, 03:32 PM
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Are there any houses in the neighbourhood that have the same layout as you? You can kindly ask them if they are having issues or not
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