Newly built single-family house KfW55 standard - How to heat?

what are you getting so worked up about hot water for? We have consumed exactly 114kWh of electricity (read via a separate electricity meter) in the last two months. That’s not even quite €30 for two months and the photovoltaic system is not even taken into account yet.

Well, that’s already 114kWh more than with a gas boiler. Here, exactly 0kWh for hot water since March. It also depends on user behavior. Some households need 50L of hot water every 24h, others 500L, and that can then throw the whole calculation with a heat pump off balance.

Google is your friend. Also please do your own research.

Exactly this friend had written it differently, which is why I was interested in your position written about it.

Well, that's already 114kWh more than with a gas boiler. Here exactly 0kWh for hot water since March.

It also depends on the user behavior. Some households need 50L of hot water every 24h, others 500L, and that can completely upset the entire calculation with a heat pump.

Exactly - as with almost all calculations and necessities in house building. The dose makes the poison, or rather the completely different lifestyle changes the respective need.

what are you all so crazy about hot water for? We have used exactly 114kWh of electricity (read by a separate electricity meter) in the last two months. That is not even quite 30€ for two months and the photovoltaic system is not even taken into account yet.

Okay, I have purchased 33 kWh for everything since April, and I have 57 degrees warm water when the sun is out

The topic of hot water is actually annoying with heat pumps. You must not set it too high, otherwise it consumes an arm. And when you want to take a bath and the temperature is just before heating up, in the worst case you get a cold tub. And the costs for hot water in winter are already significant.

With gas, everything is easy. I just don’t understand why these electricity monsters are coming back. In the 80s, the industry also tried it, but there were no pointless subsidies for these devices back then.

OK, enough complaining, you can live with it. But you definitely have comfort losses or very high consumption. Both contradict each other. Finding the optimum is difficult, it took me 6 months and the time I wasted on that, you shouldn’t put an hourly rate behind it.

I just don't understand why these power monsters are coming back again.

Honestly, I am still searching for the reasons as well and hope to know more about it in a few years. In any case, there must be an incredible market power behind it; the marketing is impressive.