Heating system new construction (heat pump + stove + solar)

Hello.

I don't want to forbid anyone's opinion, but it is nice if at least there is the feeling that someone has read the post.

toxicmolotow: Sorry

My intention:

The key data were clear from my point of view. Heat pump with stove and possibly solar.

The heat pump is basically supposed to heat the house and warm the water.
The stove is primarily intended to provide coziness and additionally relieve the heat pump when it is on anyway. Moreover, a stove that is not water-cooled heats the house too much. Therefore, I want to store the energy in the buffer, dissipate it.

When choosing the heat generation, it was more about the brand or whether solar is sensible or not.

The idea of a water-bearing stove is nonsense, I have been preaching this here for years. There is no relief. With the extra cost for hydraulics and control, you can produce your hot water alone with the heat pump for decades. Where should the active cooling come from? What the manufacturers of the heat pumps say is more marketing.

So it is not sensible to take a water-guided stove. I also wanted to use it for heating. Is it also nonsense if I get the wood for free?

The active cooling should come from the air heat pump or, with a brine pump, from the brine, then only indirectly.

By the way.
1) I would prefer a gas boiler, but unfortunately there is no gas connection there.
2) Are there oil heaters that have only 2KW output?

Since I cannot read, understand, or even interpret the chart, I cannot say anything about it and have even pointed that out explicitly.

I have only reported to you what is often read here and what I have learned myself. If that does not apply to you, all the better.

Then the issue of energy loss in the storage for the electricity topic is eliminated.

With wood, it remains, but it does not work without storage there anyway. The additional installation costs for the pipes, the mixture, the buffer, and the water-bearing chimney remain.

When looking at it all together, I wonder whether for all that money one could not just heat with the heat pump for 10 or 20 years. That then becomes more of a mathematical problem than system planning.

If I now assume 5,000 euros (no idea if that is sufficient), with that I can provide 100% heating and hot water for 10 years. If now a whole 50% of the heating is taken over by the stove (which also still costs wood and therefore money and time), I can heat for 20 years with it.

If you really calculate very precisely with all variables, you will probably get by significantly longer than 20 years.