ᐅ Roth Heat Pump Single-Family Home Settings / Optimization

Hello everyone,
I have been living in our newly built single-family house since mid-2021 and installed a Roth ThermoAura 5kW heat pump with an 850-liter (225-gallon) thermal storage tank.
Lately, I have been focusing more on the settings and have made occasional adjustments. However, I suspect there is still room for further optimization. I have already heard that many people consider the thermal storage tank to be less practical since it handles both domestic hot water and heating. By now, I at least agree that the tank is much too large.
I am satisfied with the current indoor temperatures.

What are your thoughts on the thermal storage tank? So far, I have mainly heard negative opinions about it.

Currently, the heat pump cycles about 11 times a day for heating and 1–2 times for hot water.
Here are my current data from this morning (hot water preparation was just running):

I look forward to your feedback.

Heat pump in a new build with a 47°C (117°F) supply temperature? How is that even possible?

As mentioned above, hot water was being produced at that time. That is the issue with the thermal unit… I’ll write down the supply temperature without hot water.

Ah, okay.
What are your specific questions?
I only see the ones about the tank, but also already the answer that you don’t want something like that!

How is the design of the underfloor heating, and how well has the hydraulic balancing worked so far?

I thought maybe someone here is also excited about the Thermotank 😀

What do you mean by "How is the design/layout of the underfloor heating"?
After the hydraulic balancing was done and all flow rates were adjusted, the house was initially very warm because, at that time, the heat pump was still set unchanged. After that, I did some research and gradually adjusted to find a good heating curve. At first, it was too cold, but now I’m satisfied and have about 22°C (72°F) throughout the house with the thermostatic radiator valves fully open (except for the bedroom and utility room). Let’s see how it goes when it gets really cold outside.

How much does your heat pump cycle currently in this weather?

Hockey6 schrieb:

What do you mean by "How is the floor heating designed"?

Supply/return temperatures at the design temperature (e.g., -12°C (10°F)), how many heating circuits the building has, the individual rooms, pipe spacing, calculation according to DIN standards, set temperatures for each room, flow rates, etc.

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