ᐅ Bedroom ventilation through a "ground tube" system

Created on: 15 Aug 2012 11:22
K
Kai-Uwe
K
Kai-Uwe
15 Aug 2012 11:22
Hello everyone!

Lately, I have been researching ventilation quite extensively. I have especially looked into decentralized controlled residential ventilation systems. Besides the core drilling, which of course allows noise to enter the house again, the ventilation system also costs quite a bit (the eco-ventilator that is installed in the window pane is not an option for us—apart from the price—because the roller blind needs to stay closed for soundproofing reasons).

I am now considering the following: we heat with gas via a central air shaft, into which a somewhat smaller ventilation duct could easily fit. The gas boiler is turned off during the summer. My idea is to bury the duct about 1 meter (3 feet) deep in the garden over a distance of approximately 10 meters (33 feet), run it through the basement and the air shaft into the bedroom on the first floor, and use intermediate fans to control the airflow from outside into the room (possibly also including dew point monitoring of both incoming air and the bedroom air to avoid unwanted effects).

Am I completely off track, or is this a feasible way to deliver nearly temperature-stable air into the bedroom throughout the year without much noise?

And is a distance of 10 meters (33 feet) enough to bring the air temperature close to the ground temperature?

Thanks in advance for your feedback!