ᐅ Cleaning of ventilation ducts in ventilation systems

Created on: 21 Oct 2018 16:49
L
Luftikuss
Hello

I have a newly built, 5-year-old passive house equipped with a ventilation system.

Lately, I have been thinking a lot about cleaning the ducts installed inside the building structure, since these are not accessible for removing construction dust and accumulated dirt.

I have now taken some photos with an inspection camera, showing about a 1 cm (0.4 inch) layer of dust inside the exhaust duct, which is not ideal.

After much consideration, I have found a partner with whom I have solved this problem.

We offer efficient cleaning using a cleaning pig. However, before we enter the market (planned for 1.1.2019), I wanted to hear some feedback regarding new buildings with ventilation systems.

This concerns systems installed with distributors and plastic ducts.

We would like to limit our service initially to the NRW area, but here I am interested in a realistic assessment from owners of such systems.

I have one myself and want to continue breathing clean air, not dirty, dusty air...

The method we offer is truly effective and efficient.

So, let’s hear your thoughts.
Mycraft22 Oct 2018 21:32
Brr, there are problems everywhere...

To the OP:

Please take a look at the physical principles and also how a ventilation system works.

However, much has already been corrected.

- There is no mixing of the air.
- Dust in the supply air comes from outside,
and so on.
Z
Zuluft
22 Oct 2018 23:54
Hello everyone,

if I understand the statements correctly, the main issue is the cleaning of the ventilation ducts.
Since these are often installed in the ceilings, cleaning them is very difficult.

In my opinion, the idea that cleaning is unnecessary is incorrect.
I also cannot believe that the ducts can be properly cleaned using a cleaning reel with a brush and a dust trap, or with a ball that is pulled through the duct.
The ducts are far too long, and the dust involved is fine dust.
Z
Zuluft
23 Oct 2018 00:02
Dusty hole in wall, visible rounded edge, purple pipe visible inside

Close-up of a dusty hole with a blue pipe inside.


This is how my exhaust pipes look after 5 years.
Z
Zuluft
23 Oct 2018 00:09
After 4 m (13 feet).


Video display: Spiral-shaped interior view of a tube, central floor, depth indicator 4.0 m (13 feet).
Z
Zuluft
23 Oct 2018 00:15
After cleaning with the new method, where a cleaning pig is pulled through the pipe.


Blue display with concentric circles on a rectangular screen; bottom right 3.5 m.

View inside a blue, corrugated pipe with ribs, dark inner opening.
Z
Zuluft
23 Oct 2018 00:21
And this is a fresh air duct.
Clean would look different.


Yellow-gray scouring sponge with rough surface, held in hand.

Inside view of a purple duct with spiral ribs, looking into the hollow space.