Well, it's a fan that boosts the air flow. The longer explanation is they're fans place inside ducts, 15 feet or more away from the dryer. They have built-in controllers that can sense when the dryer is on which enables them to run when they're needed only. Different booster fans have different ways of running different cycles, etc but they all do the same job of helping air move through ducts.
An LED light on the indicator panel lets the user know that the fan is operating correctly. Fantech makes air quality control easy thanks to decades of research, development, and refinement that continue to push the industry forward. Learn which Fantech solution is the best fit in your next project today. Support Frequently asked questions Dryer exhaust. When is a dryer exhaust necessary? What is the maximum length of duct that can be used with a Fantech dryer exhaust fan? How do I calculate my duct run?
How do dryer exhaust fans work? In addition, the extra moisture in the air can cause structural damage to your home over a period of time , especially if your home is built mostly with wood. Prolonged exposure to moisture will cause the wood and drywall in your home to start rotting, which could potentially make your home very unsafe to be in if the problem goes on for long enough.
Like we mentioned in the introduction, a booster fan is used to improve the airflow in a vented dryer, particularly for vented dryers with a long length of ductwork leading to the outside.
In general , this is the maximum length your ductwork can be and the maximum number of bends it can have without needing a dryer booster fan:. The way a dryer booster fan works is pretty simple. The fan is mounted somewhere along the ductwork leading from the dryer to the outside , and generates airflow within the duct that helps move everything along more quickly.
Dryer booster fans know when to turn on via one of two methods; either a pressure switch or a current sensing relay. In the case of fans that use a pressure switch, these fans use a sensor in the dryer duct that detects the increase in air pressure when the dryer is running. For fans with current sensing relays, these work by detecting when the dryer is drawing power.
Thanks to how its fan is structured, it also comes with a 5-year no-clog guarantee. It occupies a bit more space, but the fan is much less likely to clog up with lint. The main downside is the rather high price. Consider if the LB2 is exactly what you need before getting it. Expense aside, the Tjernlund LB2 is an excellent dryer booster fan that will solve all your vent run problems. While there are dedicated dryer booster fans, you can do much of the same job with a non-dedicated booster fan.
The Tjernlund M is in-line, as the name indicates, taking up 7. It provides CFM of airflow, and can extend your vent run out to about feet or equivalent. It occupies a circle 9. The LB2 is a dedicated dryer booster fan, built specifically for the purpose, while the M is a general duct booster fan that can also be used for other purposes, like adding airflow to your HVAC system.
That is, if you already have an M on hand for whatever reason, you can rig it up on your vent run to serve as a dryer booster fan. Install with caution, and if in doubt, grab an electrician friend to help you out. An offset or elbow fan is better at staying lint-free. It provides CFM of airflow and can handle a run of up to feet or equivalent. Make sure to pay attention to the stickers indicating direction when you install it, as it works only one way, and installing it the wrong way around will be highly irritating.
The only thing in the air stream is the fan blade, which spins at 3, RPM, which is fast enough to shake off any lint that might cling.
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