Heat pump is not compatible with a water-bearing fireplace

It's turned into quite a thriller here, with numerous expert opinions.

What do we know about the concrete situation? The electricity consumption is enormously high at 65 kWh daily. And we don't even have the cold season yet.

The things we don't know are far more. How big is, for example, the photovoltaic system? Is it a photovoltaic heating rod with direct DC connection? What is the actual daily hot water consumption? How many people live in the house?

Is it an airtight stove with air supply?

The problem is the buffer tank and not your heating system. Mistakes were made here.

The heat pump should claim a heating circuit for itself. The photovoltaic system can support the heat pump well. Your stove can be useful for hot water generation. Running all three together over one buffer tank is generally difficult.

If in doubt, contact the technical service of the buffer tank manufacturer. Explain your problem to them. There will certainly be solutions.

The stove will of course remain and so will the water circuit. This way you remain flexible and independent. You can also separate the heat pump's heating circuit from the buffer tank. Then it will run normally at first.

That's just household electricity consumption. Or where do you see anything that the heat pump consumes? The heat pump just has peaks again and again, which is also called cycling. It simply can't get rid of the heat because 90% of the rooms have the handbrake on. Turn the heating curve down to 0.4 and open the room thermostats, then we'll write again in a month. ;-)

and of course everyone else, a wonderful good morning!!!! The night was great!!!! The heating engineer can hear something and I thank you all from the bottom of my heart in advance. Comparison yesterday and last night. We are super satisfied, what do you think? Do you have any more tips?

These are already good news! Now you might have to wait and see how the temperatures behave in the house. Will it become uncomfortably warm or cold in certain rooms or even throughout the entire house? If so, then you have to make targeted adjustments at the heating circuit distributors or the heating curve.

Those are initially good news!
Now you might have to wait a bit to see how the temperatures behave in the house.
Does it get uncomfortably warm or cold in certain rooms or even in the whole house?
If so, then you have to make targeted adjustments at the heating circuit distributors or the heating curve.

Alright. We are also very curious to see how it behaves in colder weather and whether the stove will now heat the water or if the energy will just go into the floor again.
When it gets cold, I can first raise the target room temperature, right? Because it was currently already low at 19 degrees, wasn’t it?

You have to wait first, as RotorMotor already said. See how it develops for 2-3 days minimum. Rather longer. If everything continues to warm up as desired, you can continue to adjust the tuning screws.

1. Setting the heating is a lengthy process.
2. It is not done by adjusting it once.
3. Every autumn before the heating season, I go down to the basement and check every setting. Mainly to check if everything still works.
4. Efficiently setting the heat pump is not the job of the heating technicians. Designing it is.
Last year, for example, the return sensor and outside sensor were defective and had to be replaced.
Currently, the heating behaves like last year. Today, for testing, I increased the heating limit so that the heat pump will even start.

It's just not like in an apartment where you simply turn up the ERR and call the landlord if it's too cold.