0
Flex duct was designed to be used as a �Last 6 Feet� connector for drop ceiling applications. For this purpose there is nothing better. It also works great for multi radius connections over a short length (6 ft or less).
Ridged pipe is much better suited for longer, straighter runs. The pipe is much less restrictive and has a lower friction loss due to its smooth interior.
The ASHRE Design manual has great information on use of ducting materials.
Flex has become the materials of choice for ducting runs, only because the installers have become lazy and the company owners have become greedy. The installation cost is reduced because there is little or no time spent measuring and cutting duct to fit the application. Flex can be strung through rafters, over and around perlins, and comes in 25 ft lengths (shorter than most runs) reducing cuts and splices. It can also be strung too tight, smashed and bent to unreasonable restrictions and seldom if ever properly supported.
If used properly, flex is better than hot buttered toast. Done wrong, and reduced airflows, extreme temperature differentials and overall poor efficiency is the only possible outcome.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Which is more metallic oxygen vs selenium?
Selenium. it is a metal
Would an element that is soft and able to be cut with a knife likely be a metal or a nonmetal?
While metals can be maliable, it is more often a non-metal. Think dirt vs. a lead pipe.
What is the most important derby in the world?
Could be one of this: Boca vs River Celtic vs Rangers Barcelona vs Madrid Peñarol vs Nacional Brasil vs Argentina Fenerbahce vs Galatasaray Perspolis vs Esteghlal
Can you give example of investigatory projects in elementary?
Take a poll and see how many people recycle is an example of an investigatory projects for elementary students. You could also compare statistics of your state vs other states to see who recycles more.
Is a 14 amp power tool better than 18 volt power tool?
You can't compare volts and amps in this context. If you mean 18 Volts vs. 14 Volts then the 18 Volt tool will provide more power for the job.
Compare Standard costing vs variance analysis?
Compare Standard costing vs variance analysis?"
When was Metal vs. Hip Hop created?
Metal vs. Hip Hop was created in 2002.
When was Heavy Metal vs. Dominator created?
Heavy Metal vs. Dominator was created in 2005.
What is the duration of Heavy Metal vs. Dominator?
The duration of Heavy Metal vs. Dominator is 3000.0 seconds.
Is there much difference between Senior flex vs a ladies flex shaft?
There is actually very little difference between senior and ladies flex shafts. You will find that the senior flex shaft is slightly heavier. They are both aimed at golfers with slower swing speeds, to help them get the ball the air easier.
How does nature vs Nurture compare in Piagets theories?
What was Piaget theory on nature vs. Nurture?
Compare and contrast between interpersonal communication and mass communication?
compare communicating vs speaking
Where is a good place to compare ground shipping rates of UPS vs. Fedex vs. USPS?
This site lets you compare the rates of the major shippers: ttp://www.shippingsidekick.com/
What is human vs time?
How does universal time compare to humans
Where can one compare Brinks vs ADT?
A person that is looking to compare Brinks vs ADT can do so on the website SafeMart. On this website a person will find the reviews as given by customers on both of these companies.
What are the benefits of zenpep vs Creon?
compare Creon 10 to zenpep
Which is more metallic oxygen vs selenium?
Selenium. it is a metal
