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

Bookstar schrieb:

The problem is, we now have to ventilate the warm air out, otherwise it gets too hot inside. At the same time, the heat pump is running. It’s just absurd!

I see the same with my neighbors: heating turned on, blinds down, or windows tilted open. I’m just not willing to do that because it’s so absurd! That’s why the external venetian blinds are installed upstairs.

Bookstar schrieb:

I recently read an article stating that most heat pumps do not achieve a COP of 3 and are uneconomical. That was comforting to my criticized heating system mindset, since my unit operates between 3.0 and 4.0 😀

I would agree with that immediately without doing any research. Very few, if any, home builders have properly planned the heat pump and designed the underfloor heating system. I haven’t either. So basically, you can only optimize afterwards but not comprehensively. And it’s only one part of the whole system. Many who have a mediocre running heat pump and are satisfied simply don’t look at the system again until after a few years something malfunctions or breaks. A neighbor has the same unit as mine and now, after 5 years, it has a defect in the hot water generation. This only came to light because I was complaining about my heat pump and the temperature spread, and we exchanged experiences.

Zaba12 schrieb:

That's why I said yesterday that it will probably be too warm for Tom today.

That's right, we're approaching 24°C (75°F). The heat pump is currently taking its first break in 24 hours. The electricity meter shows 30 kW, even though the heating element has been running for 24 hours, likely just providing minor support.

@Bookstar The study is available from the Fraunhofer Institute.

Bookstar schrieb:

I recently read an article stating that most heat pumps do not achieve a COP of 3 and are uneconomical. That was comforting for my criticized heating system, since mine operates between 3.0 and 4.0 😀

On this topic, I always recommend the heat pump consumption database (easy to find by searching online). These actual user values (mostly from people who—together with their heating technicians—really consider their heating systems) show realistic and well-achievable performance. It is noticeable how these values have steadily improved over recent years.

Does this suggest that more and more heating installers are actually improving their knowledge?

Or the devices become more efficient with consistently moderate planning. Maybe 38/24/3 is no longer set, but 31/22/0 is still used.