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

Created on: 29 Sep 2020 11:06
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Bookstar
Hello!
I'll start.
Heated area 200m2 (2,153 sq ft)
KfW 55 standard
Mechanical ventilation with heat recovery
Current outdoor temperature 6°C (43°F)
Heating energy consumption including hot water 35 kWh
Electricity consumption 9 kWh
COP 3.88
Z
Zaba12
13 Jan 2021 21:13
face26 schrieb:

I don’t really understand the data. Is the photovoltaic system included in the values? It looks really good with @Zaba12. Could it be that it’s already close to KFW40 standard?

Edit: What is the U-value of your building envelope, @Zaba12?
I think it was 0.245.
Yes, the photovoltaic system is included, but the battery storage was not available at that time.
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Bookstar
13 Jan 2021 21:33
Zaba12 schrieb:

Operating time heat pump 1:07, heat output 8.4 kWh, power consumption heating mode 2 kW per hour
Is that for the last hour? That would be a COP of 4.

Do you also experience frequent malfunctions? I had two defrost errors again just today.
tomtom7913 Jan 2021 21:46
Bookstar schrieb:

What do you mean? I don't understand your post.
What exactly don’t you understand? The energy needed to heat your houses is only about half of what mine requires. That should explain why zaba only uses a few kWh per day.
tomtom7913 Jan 2021 21:47
Bookstar schrieb:


Do you constantly experience malfunctions? Just today, I had two defrost errors again.

Is the flow rate too low?
B
Bookstar
13 Jan 2021 22:04
tomtom79 schrieb:

Flow rate too low?
Yes, that is the problem. But it can’t be, since everything is open.
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Daniel-Sp
13 Jan 2021 22:05
What flow rate do you have when defrosting?