House planning final: heating components, what makes sense - no air heat pump

I made it very clear to "my" sales representative that I will not sign a contract without a reliable heating load determination, since so many values circulating on the internet are far from the facts. A calculation based on 19 degrees room temperature is also useless to me if it completely ignores my needs with small children. I am curious, since the sales rep is advancing costs. As I said: nothing is signed yet.

Are there any other experiences with the LWWP from Nibe in combination?

In addition, there is another problem with the photovoltaic system: on our preferred plot of land, we would have more or less an east-west gable roof situation with a 45 degree roof pitch. Not very ideal for the photovoltaic system, right? One row further, the gable orientation reverses and we would have an almost perfect southern orientation. But there are other disadvantages there again. Darn complicated topic overall!

I made it quite clear to "my" salesperson

Then I'm curious whether he delivers.

There is another problem with the photovoltaic system: On our preferred plot of land, we would have pretty much an east-west gable roof situation with a 45-degree roof pitch. Not very ideal for the photovoltaic system, right?

Don't let anyone tell you otherwise; east-west orientation is good! Less good in my opinion is when house purchase + photovoltaic system along with storage come from one source. We don't do that because the photovoltaic topic is just as complex as the house building topic. In this area we work with a specialized company that does nothing else all day but deal with this topic. It is perfectly enough for me to do my job well Rhenish greetings

Leave out the photovoltaics and that's fine - east-west works otherwise as well. There are calculators, simulate it, the difference is not that huge. The economy is booming - I'm curious if your wishes will be fulfilled there.