Project Homeownership - Basement, Ground Floor Plan - Tips

But who cares about a comparison between concrete and aerated bricks of the same strength?

Everyone who first establishes a "common denominator" before any kind of principle comparison, so that apples are not compared to pears. Originally, I said that concrete is only "usable" with the insulation around it at all, and the insulation on both sides is nothing other than the same insulation on both sides if you take the same "total amount" of it. From my monolith perspective, I always ask whether the sausage tastes good even without mustard. You say, wrapped in mustard you can get it down. That's a whole different matter.

There are several threads about this here, my most detailed words on the subject are in this one:

... and today I was reminded of the one that also deals with Neopor:

Good day,
it has been quiet from us for a long time. The floor plan has changed again. The building permit is still pending.
Now I have another question and would be happy if you could share your experiences with me.

It is about the technical room in the basement.
The following should fit inside:
Connections for:
Water
Electricity
House water system (for cistern)
Supply/exhaust air for controlled residential ventilation
Air/water heat pump (unfortunately still unclear whether split outdoor or indoor unit. The tendency is towards a split unit).
Supply/discharge for split unit
Water storage (for 4-5 people)
Controlled residential ventilation central unit and distributor
Circuit protection and KNX control cabinets
Server cabinet (800 x 800 cm)


To explain, all connections come from the left (street side). At the top, the path to the outside for the heat pump split unit could be realized.

How would you place the devices? I really find it very hard to imagine how much space each device needs and especially which distances should be observed where.

Thanks in advance.

This question is not your job. The [BU] you are building with, your site manager, should answer that for you. You just say: all of that should go in there. He says how, or he says it’s not possible, too tight. K.

I wouldn’t see it so calmly. It’s not just about the question of "if," but also about the "how," and that becomes relevant at the latest when different craftsmen are supposed to work there in a few years (repair, replacement, expansion, e.g., with a water softening system, etc.).

And of course, many small details depend on it. For example, if the hot water line must then run almost 7 meters across the room, you have (avoidable) heat loss there for life and may also need circulation. If the KNX control cabinet is located between the controlled residential ventilation and the supply/exhaust air, in the end, you have the thick pipes in the middle of the room at the ceiling or the outlet unintentionally too close to the terrace or a window. If too many lines cross, it gets tight with the ceiling height. And with individual contracting, you also pay for the whole (unnecessary) effort including materials separately.

However, I also see myself unable to give helpful tips here. Try to think in advance about which devices will be used specifically, look at the associated technical drawings or installation instructions, and then simply draw it out. Keep in mind where the respective lines should run later, allow generous space for accessibility, and set appropriate priorities. A duct for cables can be relatively easily extended by a few meters; for hot water or controlled residential ventilation, I would again prefer as short distances as possible.

If too many lines cross, the ceiling height gets tight. And with individual contracts, you also pay separately for all the (unnecessary) effort including material.

This cannot be said often enough: Individual contracting requires detailed planning, ideally with each pipe clamp drawn in separately, otherwise you end up with a chaotic mess.