Gelbwoschdd
2022-07-20 12:15:20
- #1
The 8th would have fit perfectly. The plumber can already look forward to the next job: replacing the heat pump after 5 years because it has been cycling to death.
Before that, he’ll get a call from you: Why are my electricity costs so ridiculously high?
Plot twist: Because the heat pump cycles and is always operated outside of the optimal operating range.
In reality, the heating load is still 30 percent lower because solar and internal gains are not considered in DIN 12831
I don’t know the background as well as you apparently do, but back then I was also advised not to choose the heat pump too large because it wouldn’t work properly then. Otherwise, I would have taken the bigger one due to the small price difference. But I’m not technically skilled enough and relied on the statements. I just quickly checked online and the opinions were along the same lines.