ᐅ Sizing of Heat Pump and Storage Tank

Of course, this depends on the region, and it varies. Unfortunately, I cannot provide any information about prices.

I believe that the two storage tanks are sufficient and I would not expand them further.

I also think the capacity of the boilers is sufficient. A drilling depth of about 100 meters (330 feet) is necessary. However, this depends on the soil conditions and the desired output.

Unfortunately, I have no experience with pricing and therefore cannot provide any information on that.

Martin11 schrieb:
Drilling depth approx. = costs for drilling (flush head)?

It is important that the heat pump is properly matched to the house. Many mistakes are often made in this regard. Based on my rough estimation, Martin11 has it well sized.

Regarding the drilling costs, I obtained several quotes. The cheapest was 250 CHF for 10 meters (33 feet) of drilling.

I also believe your capacities are sufficient. I am planning something similar myself. I have requested quotes from companies that carry out these deep drillings. The costs are similar and range between 230 and 260 CHF.

This is a kind of base price. It can become more expensive if there are difficulties. I just hope that the subsoil is not too porous.