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

We have an air-to-water heat pump plus a photovoltaic system.
As many have said: you need to calculate it for yourself. Often, it’s not worth it.
For us, it wouldn’t have worked out. The price per kWh would have been worse for each tariff, and you also have to pay for the second meter separately. With the cost of the second meter, you can already use a few kWh. In our case, the best-case savings would have been about €20/year, and in the worst case, a loss.
Additionally, using photovoltaic electricity for both the household and the air-to-water heat pump would have become more complicated. There are options to wire it so that the photovoltaic system supplies the household and heat pump first, and any surplus is fed back to the grid, but the grid operator has to offer this, and the electrician must be familiar with it.
For us, it was just too much hassle and would have ended up being more expensive.

guckuck2 schrieb:

That's 20cm (8 inches), right?
It should be possible. You often read about this in a well-known specialist forum. With gas and a 45-degree supply temperature definitely achievable.

Need help again!
Forty years ago, there was the "glowing" floor heating.
Nowadays, no one builds or wants a system where you can feel the heating pipes with your feet. 🙄

driver55 schrieb:

Need help again!
Forty years ago, radiant heated floors were common.
Nowadays, nobody wants or makes floors where you can feel the heating pipes with your feet. 🙄

There are always people confused about why the floor doesn’t get warm. The lady of the house was really looking forward to it...

driver55 schrieb:

I share that concern as well.

@TE: Do you have any pictures of it? What kind of construction is this exactly? Did you buy the house basically finished along with the plot from the main contractor/general contractor?

I would say that the loops were installed very tightly. The land was offered through a bidding process. The home builder could be chosen freely.

That is about 15cm (6 inches). That is not tight. 5cm (2 inches) would be tight.

Is this good or bad now?