The Dryer-Ell
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Long-turn Dryer Duct Elbow
500% More Efficient than Sectioned Elbows / Reclaims Allowable Run Length
The Dryer-Ell™ is a venting elbow with a large radius and smooth interior that reclaims allowable duct length.  Based on ASHRAE methodology for calculating friction loss, its innovative design removes the five-foot penalty required by most building codes for each 90-degree turn.  Adopted in 2006 IRC under section M1502.6, it can be the perfect solution for length-of-run issues.  The Dryer-Ell™ increases dryer efficiency, and--when replacing a restrictive small radius elbow--it can be used as an alternative to expensive booster fans.
In-O-Vate Technologies commissioned a 2006 Underwriters Laboratories Fact Finding Report that showed a 500% improvement in airflow versus the old, standard 4" radius 90-degree, five sectioned elbows.
  --View Elbow Comparion

  Buy Improved Duct Elbow Order Now Online (Sku LT90)
Technical Product Specification
Installation Instruction Sheet
Engineering Report
LT90 Introductory Flyer
  Testimonials
"These long radius elbows really look good." - Stephen Congleton, Loveland, OH
"I have contractors screaming for this product." - Chris Kidwell, Lambert Heating & AC, Sioux Falls, SD
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  Key Benefits
Booster Fan Alternative
Solves Length of Run Issues
Improves Airflow by 500%
   --Versus Small Radius Elbow
500% Better Airflow
  Dryer-Ell in the News
ACHR News: Dryer-Ell Takes Top Venting Design Award Honors
In-O-Vate Technologies Inc: Dryer-Ell Gets Even Greener
Building Online: Dryer Exhaust Fitting Removes 5 Foot Reduction Hassle
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  Award Winning Design
Dryer-Ell Takes Top Honors

An independent panel of 45 contractors acted as judges in a design contest that had 112 entries from 75 manufacturers. The Dryer-Ell™ took top honors with a Gold Award for ventilation products.
"Large radius dryer exhaust elbow, provides for a 1-1 ratio"


When used with the Dryerbox, contractors are able to use the entire 25 lineal feet that
most code allows for because The Dryer-ell™ does not require a reduction in duct length.
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