The minimum diameter allowed for a residential dryer vent piping is 4,” and most contractors comply with this code. However, these pipes are also available in other dimensions and materials, which significantly affect their pricing. As usual, it can be tempting to go for products that seem pocket friendly, a decision that can lead you to misery.
Before you fall for that mistake, let us look at a few things you should consider when installing your dryer vents. Click here more information about residential dryer vent installation.
1. Choice of Material and Duct Size
To start, you need to choose the right material and sizes for your residential dryer vent. It may either be:
Flex duct: it is a more tear-resistant product. However, the material is easily clogged by lint and not recommendable.
Semi-rigid flex duct: this duct type is made from aluminum or steel
Solid aluminum metal rigid dryer duct: it slows the accumulation of lint, is affordable, and functions smoothly.
2. Benefits of Using Metal Dryer Vent Material
Rigid or semi-rigid residential dryer vents made of metal are recommended for ducting your clothes dryer. The advantages of using these materials are:
- They provide a smooth internal interface and a better flow of air
- They do not accumulate lint fast
- They reduce the operating cost and time for your dryer
- Minimal chances of causing a fire
- They do not leak easily
- Easy to clean
3. Installing Dryer Vents and Elbows
Galvanized metal duct or aluminum of 4″ is used on elbows and ducts. The flexibility provided by the elbows protects your building from leaks and sagging caused by the accumulation of water and lint.
Avoid using screws to fix your ducts and elbows on the ceiling, as it is not recommendable by the manufacturers. Instead, a metal foil is suitable since it does not collect lint.
4. Connecting the Dryer Vent to the Clothes Dryer
A flexible or semi-rigid residential dryer vent can crush easily, blocking the airflow in your ductwork. This blocking can cause fire and increase your dryer’s operation time.
However, if you use a periscope or banjo duct options, you can avoid the crushing since they can bed at a 90o angle without blocking.
5. Duct Length and the Number of Elbows
Avoid the temptation of using long duct lengths. Shorter lengths are preferable, especially when routed directly to the exterior part of your building. An ideal size for the duct is approximately 2.5 feet in every 45 degrees bends.
Although these are the recommended dimensions, consider looking at what your manufacturer advises in the installation procedure.
6. Slope the Vent Towards the Building’s Exit
This design helps in preventing water/vapor from getting inside your house. Moisture can create a good environment for mold growth and rot of wood property.
Residential dryer vent installation is not about joining parts of a duct but involves careful procedures that ensure your dryer’s safety and proper functioning.