Geothermal heat pump maintenance: what to watch for and how

What exactly do I have to request to ensure that the heating system is appropriately sized? Are there any standards/guidelines to which I can refer my concerns?

What exactly do I have to demand to ensure that the heating system is properly sized?

In Germany, there is practically nothing for which some kind of standard does not apply. Where standards no longer apply, the ART (generally accepted rules of technology) apply beyond that. A complex topic.
Simply demand a complete heating system design and have it checked externally. It should include:

1. Energy Saving Ordinance / Kfw proof - optimization
2. Air volume plan / ventilation concept according to 1946-6, if controlled residential ventilation / heat recovery is intended
3. Heat load calculation according to 12831 (Here, among other things, room temperatures are agreed)
4. Heating surface dimensioning radiator / underfloor heating / WH according to EN 442, 1264 => heat pump optimization
5. Dimensioning of domestic hot water preparation
6. Pipe hydraulics
7. Selection / recommendation of heat generator
8. Consumption forecast

The chronological order is mandatory here. One should definitely create a consumption forecast, have it checked, and provide it as an annex to the contract.
Along with the correct specialist contractor declaration, you are then well secured.

Kind regards

Very interesting topic, we are also currently planning a single-family house and are considering a geothermal heat pump, with a plot of about 700-800 m² available.

We have an appointment next Friday in Munich and will be advised by ZWS. Does anyone have experience with this?

We are beginners and now it is important to gather as much experience as possible with it.
We are both working and are looking for an automated heating system.
However, we do not yet know whether we prefer to choose the local heating engineer. I think the topic of geothermal heat pumps is not yet very widespread?

I still have to write something. I am a garden fan, can I still create my dream garden if I have these geothermal coils in the garden? Will my plants die because of that? And what about animals? I plan to keep a few goats and a dog and various little animals, I probably can’t let them on the lawn anymore so that pee doesn’t destroy the heating coils?????????????

Hello,

...We have an appointment next Friday in Munich and will get advice from ZWS. Does anyone know about that?

For the topic ZWS, just ask Aunt Google!: (

..I think the topic of geothermal heat pumps is not so widespread yet?

Mistake! In addition, only near-surface collectors burden the vegetation. By the way, "pee" doesn’t bother the absorbers. Vertical probes, on the other hand, do not affect the garden!

best regards

Aunt Google says nothing good about the company.