Combination of split air conditioner, gas, solar

Already crazy. The subsidy pretty much exactly eats up the price increase that has taken place since the start of the subsidy...

That's pretty crazy. The subsidy pretty much exactly eats up the price increase that has taken place since the subsidy started...

Is that so? I don't know.. the devices themselves only cost 4000€ purchase price, everything else is spent on labor.

Until 2020, a rough rule of thumb was €1000/kW. That also fit well with all the projects I knew.

Yes ok, I could have gotten an 8.0 for a minimal surcharge, but I think 6.8 is more than enough.

In the worst case, I have 80 kW consumption in winter for heating + hot water every 24 hours.

If no [RussenGas] comes, I just won’t have hot water. I have to deliver 80 kW over 24 hours, which means an average heat output of 3.33 kWh per hour.

The system should easily handle that. Even if it only converts 1 kW into 1.5 kW heating power in nasty outside temperatures, that’s 3.6 kWh. So the maximum load is even covered by the 6.8, for nice warmth in the worst case.

Tendentially, smaller is better. Especially if you have a backup. The 8 would have worn out at 30° AT and cooling operation. The 7 is still way too big for that. For heating, it should fit better (without knowing your house, of course).

Generally, smaller is better. Especially if you have a backup. The 8 model would have been overworked at 30° AT and cooling operation. The 7 model is still way too big for that. For heating, it should fit better (without knowing your house).

yeah exactly but there’s nothing smaller :/
It has a power consumption of 0.34kw - 2.47kw depending on how hard it has to work. That’s already a good range, I think, more efficient at full load but oh well, tough luck if you insulate that well :D