HVAC Factor

As an alternative to rectangular ducting, this approach is a more efficient delivery system when conditions are suitable. From the August 2013 issue.


As an alternative to rectangular ducting, this approach is a more efficient delivery system when conditions are suitable. From the August 2013 issue.

http://facilityexecutive.com/2013/09/hvac-factor-spiral-round-ductwork/

The HVAC Factor: Spiral Round Ductwork

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