ᐅ Positioning of the ventilation system, installation of the air intake and exhaust vents

Created on: 10 Jun 2021 10:47
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K1300S
Iceman888 schrieb:

Does it make sense?

Not really. It’s either all or nothing.
Iceman888 schrieb:

Is that a disadvantage?

No, it just needs to be calculated, and the device selected or sized accordingly.
Iceman888 schrieb:

On which side of the house exterior wall are the supply and exhaust vents installed?

That depends on the lunar phase. 😀 Just kidding. Since we usually have westerly winds here in Central Europe, it makes sense to place the fresh air intake on the west side and the exhaust vent on the north, south, or east side. Or the other way around: exhaust on the east and fresh air intake on the north, south, or west side. Apparently, there are also combination covers that allow both vents on the same wall without causing problems.
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Snowy36
15 Jun 2021 20:11
Our laundry room is also unheated, but the temperature never drops below 18°C (64°F) there… How is your basement constructed?
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Iceman888
16 Jun 2021 20:01
Fully basemented, 36cm (14 inches) calcium silicate blocks with external insulation. All basement rooms are ventilated and lit through window wells.
Or what do you mean, @Snowy36?
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Snowy36
18 Jun 2021 22:35
So your basement is insulated and built with masonry? In that case, it should lose very little heat…. For an uninsulated cold room, the connection wouldn’t work well if you bring warm air in during the summer…. But with an insulated basement, it normally doesn’t get cold enough for that.
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Iceman888
19 Jun 2021 15:53
Snowy36 schrieb:

So your basement is insulated and built with masonry? Then it should lose very little heat…. with a cold, uninsulated space the connection wouldn’t be effective if you bring warm air in during summer…. But with an insulated basement, it usually never gets cold enough for that.
Yes, exactly, insulated and built with masonry.

So should I connect the basement as well?
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Snowy36
19 Jun 2021 22:29
Yes,

when it’s very hot outside, the humidity in the basement can rise a bit, but just put a common dehumidifier on for a short time...

It’s better than leaving the basement windows tilted all year round because you’re too lazy to regularly ventilate all the rooms.
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Alexcsi
19 Jun 2021 23:38
Good evening,

I’m joining in here and didn’t want to start a new thread since it’s pretty much the same topic. I installed a 100mm (4 inch) PVC pipe through the wall in the bedrooms and built a box with pipes for a portable air conditioner. Now I want to do everything properly. I’ve been searching online for about an hour but can’t find anything useful. I have now run a Zehnder ComfoTube flat 51 ventilation duct all the way down to the basement and installed a 4-way distributor on the ceiling in the hallway. The ceiling will be lowered by 20cm (8 inches). Now I’m looking for a control system for the rooms that allows me to regulate the airflow.

My basement is above ground, not underground. I want to install an outdoor unit there and an evaporator in the basement where the ducting will be connected. Even with the heating system, the basement is noticeably cooler.

Thanks

Regards
Alex