ᐅ Is a Separate Meter and Electricity Tariff for an Air-to-Water Heat Pump Beneficial?

_Ugeen_ schrieb:

I believe it wouldn’t have been worth it for us back then, and we received a different/better offer from our bank.

Better? Maybe with a longer fixed interest period. Cheaper? Definitely not, since the effective interest rate for the KfW loan is negative. A regular bank wouldn’t do that.

Aside from that, the heat pump is seriously oversized. I have my doubts about your heating system design. It sounds like it looks good on paper but will end up being expensive.

nordanney schrieb:

Better? Maybe with a longer fixed interest period. Cheaper? Definitely not, since the effective interest rate with the KfW is negative. A regular bank won’t do that.

But aside from that, the heat pump is seriously oversized. I have my doubts about your heating design. It sounds like it looks good on paper but will end up being costly.

Unfortunately, I can’t answer that either. I only know that our neighbors have the same heating system, and their house is slightly smaller. Apparently, this is common with some home building companies.

_Ugeen_ schrieb:

Apparently, this is common practice with some home-building companies.

Yep. That way, the installer doesn’t have to think or plan. They save on materials (for example, no closely spaced heating circuits) but charge you a lot for it. To top it off, the poor planning is compensated by installing an oversized heating system. And again, you pay too much because the heat pump is estimated to be 3-4 kW too large. You end up paying a third time on your heating costs.

Classic!

nordanney schrieb:

e.g. no closely spaced heating circuits),

I share that concern as well.

@TE: Do you have any pictures of it? What kind of structure is it exactly? Did you basically buy the house with the land from the main contractor/general contractor?

Bookstar schrieb:

Heat pump price is good, but household costs are a disaster. We pay 28 cents plus a 100 euro basic fee, with the bonus accounted for it comes to 17 cents per kWh.

Which bonus? What did I miss?

The key factor for a variable-capacity heat pump is the minimum output. At 8 kW (27,000 BTU/h), it can definitely still be sufficiently low.