Experiences with brine heat pump

That will only become clear in the long term. So far, the maintenance costs are at 0. I will have the sacrificial anode in the [Trinkwasserspeicher] checked soon, but otherwise. I don’t have my refrigerators serviced either; all the values and pressures are correct.

maybe someone who has been using a heat pump for a few years can write something about it..

Hi, the systems are indeed almost maintenance-free. For my two (rental) heat pumps, the technician only had to come in case of malfunctions. .....not due to maintenance backlog, in case someone is thinking that now.

For the commissioning of the heating system: it has been running on our screed program using electricity only since Wednesday and has already consumed 580 kWh of electricity. Never set your heating incorrectly or rather freeze in winter before the heating element has to be used.

Which pump do you have? I haven’t checked exactly ops:

After long considerations & a lot of reading, we have now decided on a brine heat pump with trench collectors (+ solar system). The builder works in the construction industry & can contribute a lot in-house (including an excavator that doesn’t need to be rented), which significantly reduces costs.
We are interested in the Stiebel Eltron WPF 07. Does anyone happen to have experience with it?

We have a Flexocompact from Vaillant - 5.3 kW. We would also have liked to do a trench collector, but we didn't find anyone who has experience with that - now it will be a deep drilling (expensive).