Base Pipes - Two Questions

Hello everyone,

soon the base slab will be poured at our place and so far we have only decided on a quote for plumbing including basic pipes and not yet for heating (possibly done by the same craftsman).
We want to install a brine-water heat pump and are now wondering whether the plumber and heating technician also have to lay basic pipes into the base slab for the geothermal heat (no basement). The construction manager has already noted it and wants to talk to the plumber and heating technician about it. I'm just afraid that something might be forgotten or so, hence the question.

In the pink forum someone wrote "Smearing the pipe (basic pipe) only with quick cement or similar is not a professional floor penetration." and unfortunately did not answer my question anymore about how to do it properly. Does anyone of you know how it has to be done professionally - I naively imagined that just a conduit is laid in the base slab or additionally in the foundation when pouring.

Thanks for your help

Everything that penetrates the slab constitutes a weak point and is often done poorly - our shell constructor was very careful to make sure that nothing gets through there. The problem is: the seals cost a lot of money... Take a look at home entries - they also exist including brine lines. I once stumbled across prices of over 1000 euros (pressure-water tight).

Hello,

I would recommend that you also inquire with providers of multi-utility house entries.

I seem to recall having seen a multi-utility entry that is also suitable for the lines of a brine-water heat pump - however, I can't find it quickly right now.

Google "Hauff-Technik" in Hermaringen - they have a competent customer service that also provides advice over the phone.

Regards,

Dirk

We now have a provider who claims that he pours the pipes without a sleeve or similar and that there are no problems with that. Our BU also does not see a problem there. A relative who worked in heating construction also said that they did not specially seal the base pipes. I am sure that sealing would be better, but out of curiosity: what would the damage pattern be?

The water/moisture penetrates ;)