Controlled residential ventilation in the basement, outside air through the roof

Hi,
I would draw the outside air through a suction chimney and then an earth heat exchanger. This spares you problems with air that is too cold in winter and in summer the air is at least pre-cooled to about 20-22 degrees. This does not bring real cooling effect in summer, but at least you don’t bring additional heat into the house.

If you like to tinker a little, I would advise you to use an overlay box (search for Biohort and overlay box) instead of a suction chimney and draw the air in there.
Why?

[*]It’s not more expensive than a suction chimney made of stainless steel
[*]The filters available for suction chimneys are very expensive and have far too little filter surface. As F7 filters, they clog very quickly. In extreme cases (fields nearby plus Sahara dust plus wood stoves all around) this can definitely happen after one week..... I now make the filters myself out of F7 filter fleece with three times the size of the available ones. Then it works. In the overlay box, it would be much easier to install several large filters. Cheaper and simpler.
[*]If you don’t take the very smallest box and also lay a power connection nearby, it would be possible to dehumidify the air in the box already in midsummer. For this, either install a dehumidifier in the box (Trotec or something like that) or simply install a small air conditioner. The smallest cost about 600 euros and have more than enough power to dehumidify the air. This also does not bring real cooling but less humidity in the house. And 26 degrees at 45% are quite tolerable, 26 degrees at 75% is like a steam bath....

Best regards,

Andreas

Thank you very much for the tips, I have attached a plan of how I would proceed after the input here. I'll still think about the intake box, it's not a bad idea at all.

One more thing about the pipe routing:

Inside the house it's clear, here the insulated pipe (MT-R160) from Maico. For the underground section to the outside air, I would then use KG pipe, with a slope towards the technical room.

I don't necessarily want a ground heat exchanger, I would prefer a brine ground heat exchanger if anything. I'm currently considering whether to plan 120m of brine pipe in the workroom around the house; it's not particularly expensive and I would be prepared for all eventualities.

Regards