ᐅ Question about daily living with a mechanical ventilation system with heat recovery
Created on: 11 May 2016 08:04
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Becker84
Hello, my question is aimed at those who already live in a well-insulated house with a controlled ventilation system: How does it work in winter after a long hot shower? In my case (an apartment from the 2000s), the bathroom becomes foggy, the tiles are all wet, etc., meaning I have to ventilate thoroughly.
Is there a "boost" function to remove the moisture from the bathroom? Or do you have to open the window the traditional way?
How is it in summer when you want to sleep with the window open?
Can you turn off the ventilation completely during the night?
Or, if you are not at home during the day, can you reduce or pause the ventilation?
Is there a "boost" function to remove the moisture from the bathroom? Or do you have to open the window the traditional way?
How is it in summer when you want to sleep with the window open?
Can you turn off the ventilation completely during the night?
Or, if you are not at home during the day, can you reduce or pause the ventilation?
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Sebastian7912 May 2016 09:22You present it as if this would cause wear damage.
What about intensive ventilation? What about sensors that can control the systems? Weekly schedules? All contrary to the characteristic curves...
Wear always occurs – but right now, I seriously doubt that you have any reliable study to support the assumption showing how much a system actually suffers from this.
What about intensive ventilation? What about sensors that can control the systems? Weekly schedules? All contrary to the characteristic curves...
Wear always occurs – but right now, I seriously doubt that you have any reliable study to support the assumption showing how much a system actually suffers from this.
Sebastian79 schrieb:
What about intensive ventilation? What about sensors that can control the systems? Weekly programs? All working against the characteristic curves...On the contrary, it is precisely sensors, weekly programs, and similar features that ensure the systems operate within the specified parameters.
But it doesn’t really matter...
This leads nowhere.
If you believe so, that’s fine. However, it does not change how the system actually functions.
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Bieber081512 May 2016 22:11Mycraft schrieb:
but simply determined the pressure differences based on the power consumption of the fans. Will this change due to an open window? Nothing changes at the air outlet in the bedroom, right? The next exhaust (bathroom?) might possibly draw in unfiltered air through the open window. The pressure loss across the filter in the intake line directly affects the fan, yes. But just an open window should hardly impact the pressure at the supply air outlet or the exhaust valve. Am I missing something?
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Sebastian7912 May 2016 22:20Working within specified parameters? Sounds great, but it really doesn’t say much...
If the system runs at full power for 10 minutes every time a button is pressed (and this happens several times a day), how is that better than having a window open overnight, which supposedly has such a strong impact on the very sensitive system settings? Don’t talk about specified parameters – normally you can adjust EVERYTHING in the settings; no automatic control is monitoring anything.
As long as you don’t have individual volume flow control, balancing the system will never be 100% accurate – most companies just do a quick walk-through with an anemometer and call it a day...
If the system runs at full power for 10 minutes every time a button is pressed (and this happens several times a day), how is that better than having a window open overnight, which supposedly has such a strong impact on the very sensitive system settings? Don’t talk about specified parameters – normally you can adjust EVERYTHING in the settings; no automatic control is monitoring anything.
As long as you don’t have individual volume flow control, balancing the system will never be 100% accurate – most companies just do a quick walk-through with an anemometer and call it a day...
How does it actually work when integrating a heat pump that cools in summer? Is an evaporator installed in the ventilation system to cool the house?
Using the floor heating water circuit probably doesn’t help much, except for cold feet.
Do you have CO2 and humidity sensors in every room? So that the airflow automatically increases when someone is bathing or when 15 people are visiting, and stops when the house is empty?
Using the floor heating water circuit probably doesn’t help much, except for cold feet.
Do you have CO2 and humidity sensors in every room? So that the airflow automatically increases when someone is bathing or when 15 people are visiting, and stops when the house is empty?
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Sebastian7913 May 2016 07:57Becker84 schrieb:
Using the floor heating water circuit probably won’t help much except for cold feet.But that’s exactly how it works. Cooling via a controlled residential ventilation system doesn’t work because the air exchange rate is too low.
Becker84 schrieb:
Do you have CO2 and humidity sensors in every room? So that the airflow automatically increases when someone is taking a shower or 15 guests are visiting, and stops when the house is empty?I decided against that because it’s expensive—and normally you don’t install them in every room, only where you expect such events.
I can adjust the ventilation via the web interface when needed and in every bathroom I have a push button that boosts ventilation for a set period. I consider that sufficient...
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