Experiences with brine heat pump

Initial heating in new buildings is excluded by drilling companies in my experience -> loss of warranty.
The probe or trench collector is not designed for such a withdrawal performance and can freeze, in the worst case irreversibly.

In fact, it was rejected by our plumber for exactly this reason.

In my experience, drilling companies exclude initial heating in new buildings -> loss of warranty.

If heating is done at full power according to the formal heating program, that also makes sense. In real life, however, 35 degrees are sufficient – this works very well with geothermal energy. But then you need a screed layer/heating installer who does not strictly follow formal heating protocols (which is the same for heat pumps and oil heaters, even if the heat pump will never reach 55 degrees in the screed later).

Well, my question was primarily actually, I don't have to have installed the hot water storage tank etc. at this point (screed heating program). Because the hot water storage tank is supposed to go on the screed later. There is a concrete base for the brine water heat pump.

Oh yes, and on the subject of heat source: the manufacturer and installer of our deep collector (not ring trench collector) said we could easily heat the screed with the brine :rolleyes:

If heating is done at full capacity according to the formal heating program, that is also reasonable. In real life, however, 35 degrees is sufficient - this works very well with geothermal energy. But then you need a screed layer/heating engineer who does not strictly follow formal heating protocols (which is the same for heat pumps and oil heaters, even if the heat pump will never later reach 55 degrees in the screed).

The problem is not (only) the jump to 55 degrees. Bringing a wet new building with an indoor temperature of 5 degrees up to 35 overloads the heat source.

As I already wrote, the screed heating basically works with a brine etc. heat pump. I have a brine heat pump with a deep probe myself and the (integrated automatic) screed heating program was carried out with it. However, it did not use the probes, but (also automatically) the internal heating elements. Otherwise, a heat pump can certainly also use the probe, since the temperature of, for example, the brine is measured and if threshold values are undercut, the heating elements then come into play. I consider the basic statement that bringing a damp building from 5 to 35 degrees is too much for the heat source to be wrong. The heat pump is certainly also designed to maintain the object at a cozy indoor temperature at about -15°C and—with current insulation regulations—you already get the amount of heat in—the screed heating programs are not such that the maximum temperature applies immediately; it is usually ramped up slowly. Otherwise, you wouldn’t need them at all. Aside from that, it certainly works without a storage tank, since you can also use the heat pump as a heating source without storage when there is no integrated storage.

Phew thanks. Do you have the hot water tank standing on the screed, or do special precautions need to be taken with the screed installer to support it?