texanator

I'm about to redo my dryer duct. The old one runs out thru the roof and
it's just a hassle to maintain properly.

The new duct will be horizontal and only 4' 2" long instead of going thru the roof.

The new duct will run thru a tiny storage closet, which is accessible from
the outside of the house only.

My question is... can I use 4" PVC pipe instead of the standard sheet metal duct?

The PVC would be strong enough to take minor bangs without me
having to build a box around it to shield it from dings and bangs.
(the part that is exposed inside the storage closet)

Are there safety/Building code/practicality reasons against using PVC?

--Sur

jeff1

Hi,

Check local codes, check with local contractor/builders, in my area it is frowned upon.

-Might- had to do with so many appliances having electronics in them now and some piping causes static electricity ( JMO! )

Galvanized piping is stronger than the aluminim/tin type is and can take most punishment ( or at least my kids haven't broken ours yet )

jeff.

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glennjanie

PVC would not be safe! Dryer ducts sometimes have fires in them and the normal heat of the dryer would soften the PVC to a point that would allow easy crushing.
Jeff has it right, galvanized metal pipe would work best.
Glenn

Daryl

Completely a no no on plastic anymore. If you have a gas dryer and have a puncture inside you would be letting Carbon Monoxide in your home. Not saying you do , just good info. Go metal and be safe for sure. Use aluminum (foil) tape at the joints, not duct tape.

Daryl in Nanoose

Galvinized all the way with aluminum foil tape on the joints. But you know boxing it in is a very good idea.

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Mike9825

i 2nd this -Mike-

texanator

Thanks for yalls input. I procrastinated long enough and finally tackled this task.
End result, 49 inch galvanized metal duct thru one interior wall and one exterior wall.
Added a new powertool into my collection, a Bosch rotary hammer,
which "cut" thru the exterior brick wall like butta.

--Sur

jeff1

Thankx for the update!

jeff.

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booft

Good thread, many people forget thing from time to time. I try and check mine once a month if I can. Also, mine oddly doesnt clog anywhere in the middle, only the outter end piece that is outside of my house. So a quick spray off the trap (its a rodent trap) and its clean again.

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learning

I moved into my home about 2.5 years ago. Checking the dryer duct was on the list, but I had about a dozen other "immediate" safety issues.

Anywho, I went down to the crawl space, untied the insulation (yes, I untied the nylon rope holding the fiberglass insulation to the ceiling!) and found that the dryer vent is no more than 2 inches away from the gas line. In many instances the dryer vent touches the gas line. Is my house going to explode?

I certainly don't have anything against explosions. And at this point I certainly don't have anything against my house exploding. Its just that all of my stuff is there.