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

Created on: 29 Sep 2020 11:06

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

Bookstar13 Feb 2021 19:10

#685

nordanney schrieb:

I’m starting to think that your heat pump is actually working quite well, but the house itself is the problem. Something like that really shouldn’t happen—that it gets so cold upstairs.

Yes, the stairwell has a chimney effect. It is a half-landing staircase all the way down to the basement.

Zaba1213 Feb 2021 19:20

#686

My stairwell is also open all the way to the top. No chimney effect 😎 But of course, it feels cooler when standing on the stairs. However, there is no draft going upwards.

Maybe I just have a different perception than you :p

Bookstar13 Feb 2021 19:29

#687

Yes, certainly. Downstairs in the basement hallway it's 18.5°C (65°F) and upstairs on the upper floor 22°C (72°F). That's quite a difference. But you really have to be sensitive to notice the draft 😀.

Zaba1213 Feb 2021 19:44

#688

The total household consumption is expected to be around 20 kWh at midnight today. Thanks to the sun.

Bookstar13 Feb 2021 19:48

#689

What is your total electricity consumption? Ours is 10 kWh per day. That would leave only 10 kWh for hot water and heating. Physically, that’s impossible.

rdwlnts13 Feb 2021 19:50

#690

The chimney effect actually describes the rapid rise of hot air within a vertical shaft. The idea of cold air rising like in a chimney would be an anti-chimney effect, which is a phenomenon that has not yet been observed theoretically or experimentally... Definitely worthy of a Nobel Prize!

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

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