Air-water heat pump current consumption and data

If it had 13 kWh electricity consumption, that would be around 50 kWh heat generation with a COP of 4. Running the pump makes sense, since in winter the pump runs anyway, the distribution happens automatically, unless of course the thermostatic valves lock the room. One reason not to use thermostatic valves.

Yes, that's what I meant, 50 kWh heat generation is by far not enough to warm the house reasonably. You also need hot water.

Why shouldn't that be enough, there isn't much difference between your 20kwh with 3.2 cop and his 13kwh with 4 cop?

I currently have a 28kw electricity consumption per day at least the average since 27.11, but we currently also have 30cm of snow and tonight it is supposed to be minus 6 degrees.

If it's warm, it's warm. If he says he has 13kwh consumption, then I'll believe him for once. That would be really great.

I believe him too, but I think something is being forgotten or exaggerated.. That would be 400 kwh in the coldest month, simply roughly calculated. For a house with a basement over 140m2 absolutely unrealistic. But it doesn't matter anyway :)

Why shouldn't 50 kWh of heat be enough?
In a 150 m2 house with the Energy Saving Ordinance, I have between 28 and 60 kWh of heat depending on the outside temperature and hot water.
With correspondingly better insulation, even less is possible.

Don't get upset.

My heat pump has been running like clockwork for the past 7 days. The temperatures outside were very consistent, so I can't explain the behavior yesterday, especially since the outdoor temperatures didn't differ from the last 7 days.

- Suddenly since the morning, the delta T from heating cycle to heating cycle escalated from 7-8K to 15K.
- After several hours of heating operation, the heating stopped for about 30 minutes and then started again. As a result, despite a low flow temperature of 25.5°C indoors, it naturally became unbearable.
- The delta T during non-heating operation also escalated to 7-8K.

I could puke and am breathless, almost desperate, because after the week I just can't explain how something like this can go out of control without internal/external changes.

For now, I have added the basement back to get the delta T down.
How on earth can the delta T escalate???