Air heat pump or use gas and solar?

Hello Voko

Exactly my opinion. The terms of use change over time anyway. Always this cost-benefit calculation. All pure theory and eye-washing.

Well, one should definitely think enough about costs and benefits. But there are limits to everything. It depends—as so often in life—simply on the right dosage.

At the moment, the prices for renewable energies are overpriced anyway.

Well, you really have to explain this sentence in more detail!! Which prices for which energies are why and by how much overpriced??

And what do you get for it? Partly immature technology!

This statement also requires an explanation! What is immature, how, and where??

Regards Micha

What is immature how and where??

I would say the user Voko! No idea, but just ban the pub talk slogans! Quote Dieter Nuhr: If you have no idea, just shut up for once!

The heat pump lobby always does a thorough job, although it is nothing more than a converted heating rod that is only more expensive to purchase. Efficient heating systems today are somewhat larger solar thermal systems with a large buffer storage, preferably in the Aqua-Drain solar system. (wer überwintern will, muss auch einkellern.ist mit Kartoffeln genauso) The heat distribution system should be a capillary tube system with flow temperatures of 24°-28°. For hot water, a temperature of 40-42°C is sufficient. Several acquaintances on the Baltic Sea are more than satisfied with the systems from AGRITEC-Solar.

Energiefuxx

Energiefuxx, I think you are generalizing too much here. I believe that for each construction project, you need to carefully look at/calculate which system is sensible and economical! Unfortunately, energy cannot be stored as well as potatoes! You really have to consider several alternatives here (there are many – just to name one, ice storage), and if you have little knowledge yourself, it’s best to consult a professional. Apart from that, I am quite sure that for a good number of construction projects, heat pumps can indeed operate economically (depending on the location, solar simply isn’t enough...). By the way, a heating element can generate a maximum of 1 kWh of heat per kWh of electricity, while heat pumps can achieve 4-5 kWh depending on the system. You just have to look a bit online, there are several websites where private individuals disclose their data logs and electricity consumption of their pumps, very informative.

Saruss, of course every system has to be calculated. It also depends on the region, the condition of the building, and the type of use. The problem, however, is usually the following with solar technology. Five heating companies surveyed - 6 different opinions. Then the statement, solar thermal simply doesn't work. Customer response: Why not? Heating installer: Because we can't get such a large storage tank through the door. That's how it goes in 80% of cases and what is then recommended is what the heating installer has been drilled into by his representative. Solar packages from the well-known "brand manufacturers" with support from a heat pump. Good sales for the heating installer, but not particularly efficient for the customer.

Therefore, you don't ask the heating engineers, but should first look for good solutions independently of the manufacturer and Heizi. In new construction, the door is then also not a problem if you plan correctly. But basically, I agree with you that there are definitely some companies for whom "it's warm in winter anyway" is enough..