ᐅ Air-to-Water Heat Pump: Current Consumption and Data

So, with an outdoor temperature of 2°C (36°F), a heating curve of 0.1 is too low, the bathroom temperature dropped to only 21.3°C (70.3°F).
I have now slightly increased it again.
I'm curious to see what will happen when it gets to 0°C (32°F) or colder.

Since this winter, we have had an additional infrared heater in the bathroom because we couldn’t install enough underfloor or wall heating. Instead of running the entire system just for one room, this works great. We use it for about half an hour in the morning and evening, and it feels comfortably warm.

Malz1902 schrieb:

So, at an outdoor temperature of 2°C (36°F), a heating curve of 0.1 is too low; the bathroom temperature has dropped to only 21.3°C (70.3°F).
I have now slightly increased it again.
I’m curious to see what happens when it gets to 0°C (32°F) or colder.

I think it’s tricky to adjust the heating curve too much when it’s above freezing. The impact on the flow temperature is naturally much less significant at warmer outdoor temperatures. You’re not only changing the slope but also affecting the base point.
If you’re unlucky, you might end up increasing the heating curve even more when it’s really below freezing. In that case, raising the base point could have been a better option. Also consider the term “parallel shift” here.

Today it will be around 14 kWh. Heat pump currently at 3 degrees Celsius (37°F). Compressor has been running continuously at 25 Hz (600 W) for 24 hours. Don’t you also think that 600 watts is a bit too much? I just can’t get the compressor to run at 20 Hz.-.-

Dennis89 schrieb:

Today the consumption is around 14 kWh. Outdoor temperature currently 3°C (37°F). The compressor has been running at 25 Hz (600 W) continuously for 24 hours. Don’t you think 600 watts is a bit too much? I just can’t get the compressor to run at 20 Hz -.-

I don’t understand the approach. Is the house too warm?

Dennis89 schrieb:

Today the energy consumption is about 14 kWh. Outside temperature currently 3°C (37°F). The compressor has been running at 25 Hz (600 W) continuously for 24 hours. Don’t you think 600 watts is a bit too much? I just can’t get the compressor to run at 20 Hz -.-
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If the compressor runs continuously and the house reaches the desired temperature, everything is working correctly. Why do you want to draw less power? To do that, you would probably need to set a lower indoor temperature or somehow magically increase the efficiency.