HVAC Duct Elbow Prevents Kinked Air Duct
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Customer Review
A product that works as advertised
We use SMART Flow Elbows to satisfy ENERGY STAR specifications regarding Flexible duct. (No kinks or sharp turns that restrict airflow in flexible ducts) Overall - SMART Flow Elbows are quick and easy to install - come in just one model size that fits all sizes of ducts. Thumbs up.
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Product Description
SMART Flow Elbows Improve Air Flow and Reduce Energy Use
We are very proud to offer the SMART Flow Elbow. Introduced in January 2010, the New Smart Flow Elbow has attracted a lot of attention and will certainly be one of the best new products introduced this year. It is the latest energy-saving product to be offered by Battic Door.
The patented SMART Flow Elbow is a radius-forming brace designed to form flexible duct into highly efficient 90-degree elbows to provide better airflow and energy savings. Use of this durable elbow support decreases pressure drop by up to 500% over kinked flex duct saving a significant amount of energy costs.
Installers can rest assured that it has been rigorously tested and UL-2043 Classified. Furthermore, it's made from 100% recycled materials.
The SMART Flow Elbow can be installed with any diameter of flexible duct, up to 16" in both new and retrofit situation, residential and commercial applications.
If you have air ducts in your heating system - you need to add SMART Flow Elbows!
SMART Flow Elbow Kit - Includes 2 elbows and 4 - 36" duct straps. Top to learn more
Duct elbows make more of a difference than you would think
These duct elbows come two to a pack, I ordered six packs to tackle those flexible ducts which could benefit and they were delivered promptly. The body of the elbow is rigid and made from molded plastic. The curve of the elbow is not adjustable and there is none of the "spring" which would be associated with a metal elbow. This lack of adjustment can be a limitation in some instances. Also, the elbow is not a full 90 degrees, probably more like 75 degrees so you need to ensure adequate clearance under the rafters in tight installations. The ties are long enough for most ducts, just. Installation is straightforward but it can prove tricky to get a solid foundation on the top of the vent box if the duct is bunched up or access is tight. I also installed two to ducts on my plennum to ensure optimal airflow. Once installed though there is an appreciable difference in the airflow through certain ducts in the house and thus I would definitely recommend these elbows.
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Great brush... just a little short