Current installation costs of a heat pump

The oil heating system is from 1998, so it is already quite old

There are some that have been running for twice as long. Then you can apply for KFW funding. If you want to spend little money, converting to condensing technology is, in my opinion, much cheaper and still allowed today. It reduces consumption by about 20-30%. First get some offers. The companies will then look at your existing system and know exactly what should be done. Show the roof surfaces.

I would switch to photovoltaic. With a heat pump, it is more efficient and electricity can be used for everything. Hot water only for a few applications. Moreover, the integration of [Thermie] with a heat pump is expensive and complex.

Besides, the integration of thermie with a heat pump is expensive and complex.

I can confirm that.

But it is definitely good if you consume less electricity.

Some have been running for twice as long. Then you can apply for the KFW subsidy. If you want to spend little money, converting to condensing technology is in my opinion much cheaper and allowed today. Reduces consumption by about 20-30%. Get some offers first. The companies will then look at your existing system and know exactly what should be done. Show the roof surfaces.

But condensing technology would still be with fossil fuel, right? Here is a picture from above (the house with the solar modules is oriented north)

But wouldn't condensing technology still use fossil fuels?

If that is a deal-breaker for you, then so be it.

I have merely shown you what I consider to be a lower investment.

Despite the high costs of the heat pump and photovoltaics, I decided to go with them.

If that is a dealbreaker for you, then so be it. I have merely shown you in my opinion a lower investment. Despite the high costs for the heat pump and photovoltaics, I decided in favor of them.

We want to move away from oil or other fossil fuels as much as possible because the prices are foreseeably going to rise significantly and, moreover, it is simply not sustainable. And since there are currently subsidies, we want to tackle the whole thing promptly. But we’ll see how we proceed regarding solar. We have to wait for offers and so on.