Heating offer comparison - Please share your experiences

So 21.1 kWh energy demand per year. That would also be enough to run the toaster for 10 minutes a day. Better do some more research.

So here I obviously mean per m² and year. So times 164.1 m² usable area.

Well, that is probably the value from the Enev calculation related to a heat pump. Unfortunately, it is not meaningful. Selecting a heat pump properly is based on a heating load calculation.

: Thanks for the tips. However, we have firmly decided on an air-to-water heat pump. We deliberated for a long time between gas and heat pump, but ultimately chose the heat pump for various reasons. Not least because, in my opinion, the gas and solar thermal system is not as good as the heat pump with photovoltaics. We also have a perfect, non-visible installation location. As for the neighbors, I really can only say something 100% certain when the time comes.

- What else should be considered?

Define room temperatures For each room, perform a heating load calculation Choose low flow temperatures

And only with this data determine the size of the heating system.

Here is the calculation. So it doesn’t help for the heating? Is the heating load calculation then done by the heat pump provider?

without the slightest clue

Please adhere to the netiquette. Such comments are unacceptable. It is OK if you have a different opinion, but remarks below the belt should be beneath your dignity.

- A proper air-water heat pump is not audible even at -10°C; every controlled residential ventilation system is louder.

That is probably a definition of what "proper" means and possibly a matter of your hearing.

The very well-known solid house provider Viebrockhaus, for example, installs established Nibe heat pumps, many other builders do as well, and therefore there are many opportunities to listen to them beforehand. And you can hear them. There really is no need to discuss it. Many can be heard so clearly that they should actually be considered a nuisance — especially that heat pump from the title question, which is rather among the more inexpensive ones.

But I only advised the questioner: Listen to them yourself! — That is definitely recommended. Seller statements like "you can’t hear anything" are at best a case for a trusted hearing specialist or simply customer deception.

In enough areas ... with a heat pump tariff even only 18

If such significantly cheaper heat pump tariffs exist, that’s great. Exactly where are these "enough areas"? Anyway, the questioner should clarify whether there is a heat pump tariff "in his area" and whether it is worthwhile. Of course, this conflicts with photovoltaics as well.

In Hamburg, at Vattenfall you pay 24 instead of 28 cents, but also a 15.90 basic monthly fee for this additional meter, so about 180 euros per year. With expected costs of 720 euros per year for heating/hot water, this is certainly relevant and in most cases hardly worthwhile. They know how to calculate.

completely aside from the costs for chimney sweeper, gas connection...

A gas connection is not that expensive (in Hamburg: approx. 1278.00), chimney sweeps for modern gas heaters only every three years. But yes, you should include everything in the calculation, that is correct. Gas connection costs must be considered as part of the total acquisition costs of a gas heater.