Gas with solar thermal? Or heat pump with photovoltaics? Consultation

Play instinct refers at least in my case to the optimization attempts (see heat pumps in the red forum) and the evaluation/visualization e.g. with the Nibe Uplink.

that is something that would rather be out of place on a gas boiler.

that is something that would be rather out of place on a gas boiler.

Misconception, gas boilers can also be optimized (in fact, they should be) and these manufacturers are not asleep either; they have recognized the market possibilities just as well and offer tools for that.

It’s just that taking the step with a gas heating system is easier than with a heat pump, since the technology forgives many user errors and a few degrees of reserve here and there are not worth mentioning.

Heat pumps are still immature technology. Everyone in our construction area has problems with them. In addition, there is noise, high consumption, lack of durability, and the necessary suitable installation location. In doubt, better choose gas!

In our development area, all heat pump owners are satisfied, they run without problems, and there are no complaints about consumption. Maybe you just have bad installers in your area. I wouldn’t generalize either way.

As already mentioned, for me the issue with heat pumps and photovoltaic systems is also a big aspect of “playing around” since it is a new technology that at least gives the appearance of a future-proof and economical system. Some might even bring up the argument: …then I can also charge my electric car with the photovoltaic system… which, from my point of view, is nonsense because you would need a huge photovoltaic system in sun-poor northern Germany.
I have an appointment at the consumer advice center in two weeks and will talk to an independent graduate engineer about the topic. Let’s see what he says?! I will definitely report back!

Well, it can support charging, but you can’t cover large shares.

Basically, it doesn’t matter whether you use gas or a heat pump; in a modern new building, neither will make you poor in the long run. If you design the underfloor heating so that you can also realize the flow temperatures for a heat pump, you’re open to switching. One thing I learned during construction is that with three people, you get three opinions, all completely contradictory, and all are experts. You will get his opinion at the appointment.

One should also not forget that this is about relatively small differences in the monthly costs.

Whether I pay 80 euros or only 60 euros usually does not stand in any real proportion to the different costs of production.

20 per month = almost €5000 in 20 years
Cost of gas connection €2000 one-time
Cost of chimney €2500 one-time
Chimney sweep €100 per year = €2000 in 20 years.
Gas will inevitably become expensive due to CO2 charges.
With photovoltaics, I can install a storage system later if electricity becomes too expensive. With gas, rather difficult...
Storage systems are getting cheaper and cheaper...