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Q: Which device can be used to determine restriction in a duct system?
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What is a duct blasting test?

A test to determine if there are leaks in your duct system. Pressure is added with a fan to the duct and measured to see if leaks are present, fog can be used to visually identify leaks.


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Is there a special device used for hood duct cleaning? Where can I buy such a thing?


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How can you determine if your air ducts need cleaning?

If you can visually see a lot of dust build-up inside your duct system, or if you have mold in your duct system, it is probably a good idea to have them cleaned. Dust and mold can lead to polluted air and increased allergies in some people.


Where can I buy a device for furnace duct cleaning online?

You can buy a device for furncae duct cleaning on the following site: http://www.fireplacestore.com/frplcstrhome.html. They have a fantastic selection of everything fireplace.


What is a damper in ac terminology?

A damper is usually a piece of metal that is installed in a duct to allow the airflow to be restricted. This lets the user open or close the restriction to adjust the amount of air getting through. There is often a metal tab handle outside the duct to rotate the damper inside the duct. The handle is parallel to the restriction plate, so the least resistance is when the handle is parallel to the duct itself. To restrict the airflow, turn the handle so that it is up to 90 degrees off from the direction of the duct.


What kind of a system is ductwork?

Ductwork is simply a duct system. Ducts are essential to the circulation of air, and ductwork describes a range of duct related fields, such as duct design.


What do you need to do to change duct work from using a fuel oil furnace to propane furnace?

If both systems are forced air systems it's possible to use the existing duct work; however, with out viewing you project, I would suggest having an air duct specialist evaluate your system to determine if modifications are necessary .


What is air duct?

An air duct is a duct through which air is forced or extracted, which forms a part of a building's ventilation system.


What is an air duct?

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What is the irrigation system that provides water for the central valley in California?

the California aqua duct