| Long-turn Dryer Duct Elbows |
| 500% More Efficient than Sectioned Elbows |
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Dryer-Ells are ten inch radius, smooth interior elbows that reclaim allowable duct length. Based on
ASHRAE methodology for calculating friction loss, they can be measured the same as straight pipe. This
removes the run length penalty that most building codes require for every elbow. Adopted in 2006 IRC
under section M1502.6, 2009 IMC under section 504.6.4 and 2009 IRC section M1502.4, Dryer-Ells 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.
Underwriters Laboratories
In-O-Vate Technologies commissioned an 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 Comparison
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"This sweeping 90 is really the trick." - Wendell Pearson, WR Pearson Construction, Tifton, GA |
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"I have contractors
screaming for this product." - Chris
Kidwell, Lambert Heating & AC, Sioux Falls,
SD |
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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.
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Airflow Efficient 10 Inch Radius Elbows |
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90 Degree Dryer Duct Elbows
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45 Degree Dryer Duct Elbows
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When used with the Dryerbox, contractors are able to use the
entire 35 lineal feet that
most code allows for because Dryer-ells do not require a reduction in duct length.
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Ten Inch Radius
Dryer Exhaust Elbows, Provide for a 1-1 Ratio
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