If a dryer s vent run is over 25 equivalent feet or the dryer is experiencing long drying time your dryer may need a dryer booster fan.
Dryer vent blower booster.
When using equivalent feet a 90 elbow equals 5 feet and a 45 elbow equals 2 5 feet.
Ideal for residential commercial or industrial settings.
Dryer booster fans help boost airflow through the dryer duct.
Dryer booster fans help the air duct system by boosting airflow through the dryer duct.
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A current sensing relay senses electricity flowing to the dryer and as a result it allows power to flow to.
The dryer duct booster can also reduce the potential fire hazard associated with lint buildup.
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The fans are typically mounted in line in the existing duct preferably 15 feet or more from the dryer more on that later.
Fantech dbf series dryer booster fans.
Each fan has a built in controller which senses that the dryer is on and allows the dryer booster fan to run.
Fantech tjernlund and s p all have dryer booster fans that do just what the name implies.
They can be switched on or off via a switch time switch or a current sensing relay.
Each kit features an automatic reset with thermal overload protection and a high temperature rating of up to 140 degrees f.
They can be switched either with a pressure switch or via a current sensing relay.
Designed to improve your dryer s efficiency this 4 in.
Fantech boosters are all suitable for most dryer boosting applications and can be used for maximum duct length of 60 linear feet with a maximum of six elbows using four inch rigid duct.
Some dryers can.
According to dryer manufacturers and some local building codes duct booster fans should be added in the dryer duct run when the length of the duct exceeds 25 feet with no bends 20 feet with one bend or 15 feet with two bends.
A pressure switch senses pressure in the dryer duct run and allows power to flow to the fan.