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

Created on: 29 Sep 2020 11:06
B
Bookstar
Original post
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
tomtom793 Feb 2021 16:36
#409
The internal heat meter is very inaccurate.

A few days ago, I wanted to write something already—if your CoP is correct and your generated heat is as stated, I wondered where all this heat goes or if you have 23 degrees Celsius (73°F) or more throughout the entire house.
Z
Zaba123 Feb 2021 16:37
#410
Bookstar schrieb:

I think your house must be on a hot lava field. Otherwise, it can’t be 😀.

Unfortunately, none of the numbers add up.

But it has to be correct somehow; otherwise, my inverter would be lying.
Today’s total won’t exceed 17 kWh overall, as you can see.


Blue display of a heating system with green rotary knob; values: heating, hot water.

House consumption dashboard: Total 10.1 kWh; PV 1.67 kWh, grid 8.21 kWh, battery 211 Wh
H
halmi3 Feb 2021 16:42
#411
Since you don't know exactly how much your heating system actually consumed, there is always a certain degree of inaccuracy in the figures.
T
T_im_Norden3 Feb 2021 20:20
#412
Apart from the lack of accuracy of the internal meters, 28 kWh (kilowatt-hours) of heat is not particularly a large amount.
B
Bookstar3 Feb 2021 20:23
#413
T_im_Norden schrieb:

Apart from the lack of accuracy of the internal meters, 28 kWh of heating is not extremely much.

That’s one way to put it 😀.
Z
Zaba123 Feb 2021 20:34
#414
T_im_Norden schrieb:

Apart from the inaccuracy of the internal meters, 28 kWh of heat is not really that much.
How else could it be? The heat pump only ran for 146 minutes in 24 hours. Yet, the house is warm enough.