When installing dryer exhausts always use foil tape which is easily located online or at hardware stores. Make sure to cover all cracks and any place that looks like air might escape from the line.

Another reason to use tape is because screws inserted into the feed line can be a place where lint can build up over time. And don't be stingy with the tape, use plenty to make sure you have a good seal.

Also because over time the tape itself may lose a little of it's sticking power and if you've secured it well to start with you will have to inspect less and you clothes will dry faster.

When your duct has quite a distance to travel you have to watch how many curves you have, it's always better to have smaller curves like 45 degree angles to get where you want to go and not too many of those. Support long feeds with metal brackets.

If you go through any part of an area of your home that is not already insulated you might want to think about insulating the duct work in this area because it can impede the air flow if it's causing water build up from condensation.

Almost all manufacturers of dryers say to use metal with your dryer duct fans even know people seem to use the flexible plastic kind. You definitely have to use metal when going through walls or for any kind of distance.

Check you local neighborhood building codes for details in your area when installing dryer ducting.

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According to many local building codes, booster fans are required to be part of the dryer duct when it exceeds 25 feet. That is with no bends, if one bend is needed it drops to 20 feet and from there 15 feets when 2 bends are needed.

Usually you will already know there is a problem in your system because the drying time is just taking too long. On new duct installs it will drop over time, what used to take 45 minutes starts becoming 2 to 3 hours.

In a lot of situations dust begins to appear in the dryer area and even sometimes condensation leaks at different places in the duct run.

What's ideal about today fans is the material they are made of. Most are PC/ABS blends because it combines the ability for the plastic to be UV resistance and stand up to weather conditions and at the same time providing flame resistance. Used a lot these days in computer products and plastic housings for motor components.

What to look for in a Booster Fan:

The main component to look for is the positive pressure switch. This detects positive pressure in the duct which turns the fan on and off.

Another item to look for is closed ball bearings in the motor since it will be exposed to lint over it's life cycle. Also a lot of people install lent traps at the same time to cut down on lent.

One more Thing:

Even with closed bearings and lint traps and new ducting, it's still a good idea to have your dryer booster fan easy to get to. To make sure that there is no lint clogging up internal components. Even know the bearings are sealed in better motors any lint at all can impede optimum performance. Check every 6 months for peace of mind.

Here are fantech dryers that meets all these requirements and is the best price I could find on the net.

Fantech DBF110 Dryer Booster Fan DBF 110 KIT NEW $171.00 Time Remaining: 28d 13h 41m Buy It Now for only: $171.00

FanTech DBF110 Dryer Booster Fan Kit DBF 110 $173.88 Time Remaining: 29d 12h 59m Buy It Now for only: $173.88

Fantech DBF110 Dryer Boosting Kit $194.40 Time Remaining: 7d 18h 2m Buy It Now for only: $194.40

Fantech DBF 110 Dryer Boosting Fan Kit $194.40 Time Remaining: 10d 22h 52m Buy It Now for only: $194.40

Fantech DBF110 Dryer Booster Fan DBF 110 KIT NEW $171.00 Time Remaining: 28d 13h 41m Buy It Now for only: $171.00

FanTech DBF110 Dryer Booster Fan Kit DBF 110 $173.88 Time Remaining: 29d 12h 59m Buy It Now for only: $173.88

The Fantech models DBF 110 is ideal for most drying situations. Usually this model can be used for up to 60 linear feet with up to 6 elbows using rigid duct (4 inch)

Dimensions: 12" x 12" x 15" at 10 lbs.

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