Geothermal heat pump single-family house 200m² underfloor heating kfw55 - setting/optimization

How did you actually aggregate the values in the graph for Dimplex?

The storage of that size is of course a specialty. Typically, people shower/bath at 38-41 degrees, so why keep so much water at 50 degrees? I would turn that down significantly. And with that size, you should consider Legionella, unless 8 people shower there daily.

How did you actually manage to aggregate the values in the graphic for the Dimplex?

The storage of that size is of course a specialty. Typically, you shower/bathe at 38-41 degrees, so why keep so much water at 50 degrees? I would significantly turn that down. And with that size, you should consider legionella, unless 8 people shower daily.

So I am not an expert but this is NOT a normal hot water storage tank. It is a stratified storage tank. The warmest water is stored at the top and serves as warm water preparation in the flow-through principle. At the bottom (I think about 2/3) is the heating water. Legionella are absolutely NOT AN ISSUE!

Thank you for the link, about the network extension then.

Yes, that's right, it is a layered storage. How are the layers distributed? With 850l the problem of the large dimension remains. Either the hot water supply is unusually large for a single-family house or the buffer for the underfloor heating is very large (or both :)) - although the latter should preferably be 0l :)

First of all, forget about achieving differences of more than three degrees within the thermal envelope!

So sleeping at 18 and bathroom at 23 is simply not possible.
Trying to achieve something like that just leads to frustration.
Interior doors and walls are simply not insulated.

I don't want to leave it at that. I have 23°C in the bathroom, 18.5°C in the bedroom, and 21.5°C in the hallway. The bathroom and bedroom are located right next to each other. Of course, I throttled the two heating circuits in the bedroom. To 0.2 l/min.
BUT I also work with ERR because I don't want to give up comfort.
As wrote, you should find out what the heating curves of the mixer and heat pump are and post them here.

I would also reduce the domestic hot water from 50°C to 45-48°C.

In the bathroom 23°C, in the bedroom 18.5°C and in the hallway 21.5°C. Bathroom and bedroom are directly next to each other.

Please explain how you do that and how you measure it.
And what kind of walls and doors are in between?
Ah, and how is the thermal envelope constructed?

I don’t want to leave it like that. I have 23°C in the bathroom, 18.5°C in the bedroom, and 21.5°C in the hallway. The bathroom and bedroom are right next to each other. Of course, I have throttled the two heating circuits in the bedroom to 0.2 l/min. BUT I also work with ERR because I don’t want to give up comfort. As wrote, you should find out how the heating curves of the mixing valve and heat pump are and post them here. I would also reduce the hot water from 50°C to 45-48°C.

I also find that very interesting. And even though it wasn’t for long, I almost managed this here for the last 3 days as well. In the bedroom 19/19.5 but also in the hallway 21/21.5 and bathroom 23/23.5. I found that very optimal. 2 starts of the heat pump per day, each about 2.5-3 hours long. Which is still quite a high consumption for the outside temperatures (about 8 kWh/day) – and that feels like only for the warm bathroom. I think an additional heater could save quite a bit of household consumption at those times. But again, concretely:

[*]Even though you want it as cold as possible in the bedroom (is that your wish?), you turned the heating up slightly anyway? Do you also have an ERR in the bedroom? If yes, what is it set to? Does it even regulate? [*]What kind of average supply or return temperature do you have when the pump is off? At what temperature does the pump switch on and up to what temperature does it heat? [*]