aluminum flexible ductDryer venting tips and practices Flexible transition hose between the dryer and the wall outlet should be either the foil type or the aluminum flexible duct (most preferred). Do not use the plastic or vinyl. Concealed ducting must be rigid metal (galvanized or aluminum) duct.

What is the best pipe to use for a dryer vent?

That being said, we recommend using a smooth rigid metal duct to vent your dryer. Metal can withstand the heat generated by the dryer, and is will not accumulate dust and lint like plastic pipe. Aluminum duct is usually a safe bet, and it’s fairly inexpensive.

Can you use flexible duct for dryer vent?

Modern dryer heating elements are very powerful and can ignite the lint accumulated inside the plastic duct and the dryer, starting a house fire. You can use a 4-inch flexible aluminum foil duct that is UL 2158A listed and marked for safe dryer venting.

Is PVC OK for dryer vent?

Dangers of PVC Pipe

PVC pipe’s sensitivity to heat is a big reason why it is not recommended for use in dryer vents. The exhaust from a clothes dryer can reach temperatures ranging from 120 degrees to 200 degrees Fahrenheit, which could cause the pipe to soften and fail.

Can I use aluminum duct for dryer?

Only rigid metal ducts, either aluminum or galvanized steel, are suitable for concealed dryer vent ducts that run inside floors, walls, and other areas before venting outside the home. Their smooth surfaces allow maximum air flow and resist lint accumulation, which contribute to fire safety.

What is code for dryer vent?

The maximum length of a 4-inch (102 mm) diameter exhaust vent shall not exceed 35 feet (7620 mm) from the dryer location to wall or roof termination, and shall terminate with a full opening exhaust hood. A reduction in maximum length of 2.5 feet for each 45-degree bend and 5 feet for each 90-degree bend shall apply.

Should dryer vent hose be straight?

The maximum length of the exhaust duct does not include the transition duct. This means that vents should also be as straight as possible and cannot be longer than 35 feet. Any 90-degree turns in the vent reduce this 35-foot number by 5 feet, since these turns restrict airflow.

Can I use galvanized duct for dryer vent?

Dryer manufacturers recommend using rigid steel tubing for dryer vents. Both aluminum and galvanized steel work in these applications. Plastic and flexible tubing can be less efficient and can actually trap lint, which can decrease the dryer’s efficiency and can be a fire hazard.

Is semi rigid dryer duct safe?

Semi-rigid aluminum flex vent does have corrugations, but the interior surface of the pipe is smoother than that of plastic and foil duct, making it less likely for blockage to occur. Aluminum pipe also offers better fire-resistance than the other flexible ducts, yet none are as safe as rigid metal duct.

Can you use 4 PVC for dryer vent?

A dryer duct should be at least 4 inches in diameter, clean, and with no obstruction to airflow. The pipe should have zero friction to allow for airflow efficiency and quicken the drying period.

How long should a dryer vent hose be?

35 feet

How Long Should A Dryer Vent Be? A dryer vent should not exceed 35 feet in length. Furthermore, for every 45 degree turn of a dryer vent you should remove 2.5 feet in total allotted length. For every 90 degree turn, you should remove 5 feet in total allotted length.

What size dryer vent hose do I need?


Most of the dryer vent hoses are 4″ in diameter, that is matching the size of the dryer machine outlet.

How many elbows can a dryer vent have?

As a general rule the maximum unassisted run for a dryer is 25 feet which is about what the subject has. This can vary slightly manufacturer to manufacturer. For every 90 degree elbow in this line 5 feet needs to be deducted off of the maximum allowed. There are 6 elbows in this run which obviously exceeds this limit.

Can a dryer vent go straight up?

Can You Vent a Dryer Vertically? You can vent a dryer vertically as long as you don’t exceed a distance of 35 feet in length. The preferred way to vent a dryer is downward or laterally but vertically is indeed an option. There are also special considerations to keep in mind when running a dryer vent vertically.

Does dryer vent need to be airtight?

Dear Pat: It is very important to install a tight-sealing dryer vent cover for several reasons. The dryer vent duct is a direct open path from indoors to outdoors. If the vent cover does not seal well, it is just like leaving a window partially open.

How high should dryer vent be off ground?

12 inches

Set the vent a minimum of 12 inches above the outside ground. Pro tip: Use no more than 25 feet. of 4-inch duct, and subtract 5 feet for every 90-degree turn and 2 1/2 feet for every 45-degree turn for dryer vent installation.

How do I vent my dryer outside?

Quote from the video:
Quote from Youtube video: So that wants to be about what about two inches two and a quarter inches from the back wall six. And two and a. Quarter. So here's our pilot hole right here and this is vinyl siding.

How do you install a dryer vent pipe?

Quote from the video:
Quote from Youtube video: The duct pipe through the four and a quarter inch hole attach. The hood to the siding outside with wood screws. It's very important to caulk around the edges of the hood to seal against the elements.

How close can dryer be to wall?

It’s ideal to have around six inches of space behind your washer and dryer. A periscope dryer vent can save space behind the dryer. The dryer is able to sit closer to the wall because of this.

Can you put a dryer vent behind drywall?

Exhaust ducts shall not be connected with sheet-metal screws or fastening means which extend into the duct. This means that the flexible, ribbed vents used in the past should no longer be used. They should be noted as a potential fire hazard if observed during an inspection. M1502.

How do you vent a dryer in a tight space?

Where space is limited, an adjustable offset dryer vent is used. It’s also called a periscope dryer vent. Offset vents allow the dryer to be installed closer to the wall than a typical basement installation, using a 90 degree 4-inch duct elbow on the dryer’s discharge vent.