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.
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.
L
Luftikuss21 Oct 2018 19:16Hello Bookstar,
Our competitors charge €900 net plus VAT for a cleaning with a brush, which is not very effective.
Additionally, the VDI recommends cleaning every 3 years, although this is not mandatory.
We are planning a cleaning fee of €500 net plus VAT. This includes running a brush through each duct at least 4 times in the exhaust air section.
The supply air ducts are cleaned at least twice, including disinfection, as well as travel and assistance.
The time required is about 5 hours, depending on the size of the system.
We will probably not manage with €300. I would also prefer as a customer to pay less, but we need to stay clearly below the prices of our competitors.
Our competitors charge €900 net plus VAT for a cleaning with a brush, which is not very effective.
Additionally, the VDI recommends cleaning every 3 years, although this is not mandatory.
We are planning a cleaning fee of €500 net plus VAT. This includes running a brush through each duct at least 4 times in the exhaust air section.
The supply air ducts are cleaned at least twice, including disinfection, as well as travel and assistance.
The time required is about 5 hours, depending on the size of the system.
We will probably not manage with €300. I would also prefer as a customer to pay less, but we need to stay clearly below the prices of our competitors.
Luftikuss schrieb:
Of course, we breathe in the dust from the exhaust ducts. A filter removes a lot but not everything.
Through heat recovery, the exhaust air is mixed with the fresh air and then recirculated. So we do breathe it in.Sorry, but that’s nonsense.
L
Luftikuss21 Oct 2018 19:54I see it this way because the room air (exhaust air) goes into the heat exchanger and, depending on the recovery rate, returns to the supply air. This is the case at least with my Alpha Innotec system. As a result, dust particles will always get into the fresh air.
In addition, there is a fine layer of dust inside the supply air ducts that also needs to be cleaned.
In addition, there is a fine layer of dust inside the supply air ducts that also needs to be cleaned.
I find that hard to imagine. The heat recovery takes place through the heat exchanger, not via a bypass that mixes the exhaust air with the supply air. Only the energy from the exhaust air is transferred to the supply air. Could it be that you are confusing this with the existing summer bypass in the supply air, which directs cold outside air past the heat exchanger directly into the rooms?
L
Luftikuss21 Oct 2018 20:11My concern is that the systems are accumulating dust. For every customer we gain, we use an inspection camera to show how dusty the ducts are. We carry out a proper cleaning.
Yes, it’s also possible that I made a mistake here. I always have my heat exchanger installed. I do not have the summer cassette myself, nor do I need it.
As I said, my goal is to clean the ducts effectively and cost-efficiently. I will upload pictures of my ducts in the coming days.
Yes, it’s also possible that I made a mistake here. I always have my heat exchanger installed. I do not have the summer cassette myself, nor do I need it.
As I said, my goal is to clean the ducts effectively and cost-efficiently. I will upload pictures of my ducts in the coming days.
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