ᐅ Ventilation System in a Single-Family Home Not Working – Planning Mistake?
Created on: 1 Feb 2021 19:35
J
jeti79
Hello everyone,
We have now been living for 2 years (since November 2018) in our detached house with a pitched roof, built according to the 2016 energy saving regulations, equipped with a central ventilation system (Wolf CWL300). Unfortunately, we have not been satisfied with the "performance" of the ventilation system from the start. We repeatedly called our installer in the beginning, but after about the eighth visit, he gave up and simply said, "The building is full of moisture at the beginning, so it’s normal for the air quality to be poor for two years." We consider this a poor excuse.
Our dissatisfaction mainly comes from the fact that we have had the chance to compare with neighboring houses (all in the same development with similar new build standards), where the air quality is usually significantly better than in our house. This means: despite the ventilation system running continuously (on occupancy mode at about 190 m³/h [190 cubic meters per hour]), the air in our house is almost always stuffy, whether we are home or not. Although the installer advised against it, we have actually been leaving the windows open every night lately because the air in the bedroom feels used up after 3-4 hours. It’s the same situation in the children's rooms.
Even when we come to the ground floor in the morning (where nobody has been all night), the air quality is anything but good. So, as we did before, we immediately open the windows in the morning.
Of course, I assume that we might be making some mistakes ourselves, but I would like to find out if there might also be (major?) planning errors in our system? Is it even possible to determine that remotely? What information would you need from us?
I have attached a layout showing how the supply and exhaust valves are installed on the upper and ground floors. The system is installed in the attic. I change the filters regularly every month (because it’s a new development), and the chimneys on the roof are the required >2.5 m (over 8 feet) apart from each other.
We have now been living for 2 years (since November 2018) in our detached house with a pitched roof, built according to the 2016 energy saving regulations, equipped with a central ventilation system (Wolf CWL300). Unfortunately, we have not been satisfied with the "performance" of the ventilation system from the start. We repeatedly called our installer in the beginning, but after about the eighth visit, he gave up and simply said, "The building is full of moisture at the beginning, so it’s normal for the air quality to be poor for two years." We consider this a poor excuse.
Our dissatisfaction mainly comes from the fact that we have had the chance to compare with neighboring houses (all in the same development with similar new build standards), where the air quality is usually significantly better than in our house. This means: despite the ventilation system running continuously (on occupancy mode at about 190 m³/h [190 cubic meters per hour]), the air in our house is almost always stuffy, whether we are home or not. Although the installer advised against it, we have actually been leaving the windows open every night lately because the air in the bedroom feels used up after 3-4 hours. It’s the same situation in the children's rooms.
Even when we come to the ground floor in the morning (where nobody has been all night), the air quality is anything but good. So, as we did before, we immediately open the windows in the morning.
Of course, I assume that we might be making some mistakes ourselves, but I would like to find out if there might also be (major?) planning errors in our system? Is it even possible to determine that remotely? What information would you need from us?
I have attached a layout showing how the supply and exhaust valves are installed on the upper and ground floors. The system is installed in the attic. I change the filters regularly every month (because it’s a new development), and the chimneys on the roof are the required >2.5 m (over 8 feet) apart from each other.
T
T_im_Norden8 Apr 2021 16:32@OWLer
How is the planning going?
I would definitely have 2 outlets installed in the bedroom.
I had this done in our home, and you can’t hear anything. I only regret that I have just one outlet in two other rooms.
How is the planning going?
I would definitely have 2 outlets installed in the bedroom.
I had this done in our home, and you can’t hear anything. I only regret that I have just one outlet in two other rooms.
T_im_Norden schrieb:
@OWLer
What’s the plan like?
I would definitely have 2 outlets installed in the bedroom.
I had that done in our place and you don’t hear anything, I only regret that I have just one outlet in two other rooms. Yes, I also think that’s a good idea! In every bedroom...
T
T_im_Norden8 Apr 2021 19:02With 2 outlets, you also have two ducts leading to them. This means the airflow speed is either reduced by half, making it quieter, or you can supply more fresh air into the room without the noise becoming too loud. Both options are beneficial and give you more flexibility.