500% More Efficient Dryer Elbow
The Dryer-Ell is a re-engineered
metal dryer exhaust fitting that exhibits a larger radius and a smooth
interior, providing a net gain of approximately 4.5 feet in allowable
duct length when used as a replacement to the standard 4” ell currently
used in the dryer venting trade.
Based on accepted ASHRAE methodology for calculating friction loss in
ducts and fittings, this new elbow removes the 5 foot reduction consequence
found in most building codes.
The Dryer-Ell is granted a run length credit
under 2006 IRC Section M1502.6.
 See Them Compared
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