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Question DetailsAsked on 11/15/2013

How to clean flexible duct work

can flexible duct work that runs through the whole house supplying heat and air conditioning be cleaned?

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1 Answer


In theory yes - best with an air jet/vacuum system rather than a brush system, but the problem is unless a camera is run afterwards you have no assurance the ducting has not been torn or pulled apart at joints.

Read prior responses in Home > Duct Cleaning about the need for cleaning - many people do it when it is not really necessary. Basically, unless there is so much buildup that it inpedes airflow (say more than about 10-15% cross-section blockage) there is generally not a need unless you have upgraded to a system with higher airflow, because the dust you see in there generally does not move around. Your money is better spent, in most cases, in getting a better job of filtration in the first place.

Answered 6 years ago by LCD

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