ᐅ Which Heating System for a Prefabricated House: Air Source Heat Pump, Geothermal, Solar Thermal, Photovoltaic

Hello,

Vit84 schrieb:
I am currently facing the same issue of choosing a heating source. For the reasons mentioned above, I am currently of the opinion that a gas heating system is the better alternative compared to other heating systems.

How is "better alternative" defined?
There is no universal "ultimate" heating system, as every building project is specific in terms of its framework and boundary conditions. Every heat generator has advantages as well as disadvantages.
Furthermore, if gas condensing boilers were the only "miracle solution," technologies such as heat pumps, district heating, etc., would not exist.
Broad "pros" or "cons" are more harmful than helpful in this context.

Best regards

Exactly. And regarding the basic and boundary conditions, for me the gas condensing boiler is the better alternative compared to the overpriced, noisy, power-consuming heat pumps. Nevertheless, it is not a reliable basis for a major investment decision. ;-)

Hello,

Vit84 schrieb:
... compared to the overpriced, noisy, power-hungry heat pumps ...

Sorry, that is a serious misconception!

With correct calculations and choosing the right size and therefore the right provider for your new build, an air-to-water heat pump is by no means “overpriced” and certainly not “noisy” or “power-hungry.”

You have every right to freely choose a proven heating system on the market. However, please do not use the argument above when making your purchase decision, as it is simply not true.

Best regards, Bauexperte

Hello,
there are also minor differences in noise levels among heat pumps. You should also check the sound emission pattern – with the right installation location, you can gain some advantage (or cause more or less disturbance for your neighbors).
Regarding gas: is a gas connection even available? Especially in suburban or rural areas, there are often streets where gas service is not accessible.
Alternatives: wood in any form, or electric heating...

Best regards,
I.

Bauexperte schrieb:
Hello,


Sorry, that is a crude misconception!

With the correct calculation and using the right size and therefore the right provider for your new build, an air-to-water heat pump is by no means "overpriced" and definitely not "noisy" or "power-hungry."

You have every right to freely choose a proven heating system on the market. But please do not use the above argument as a reason for your purchase decision, because it simply is not true.

Regards, Bauexperte

Sorry, but that’s unfortunately how it is. I wish it were different. I have requested several quotes, and in every case, the air-source heat pump was significantly more expensive than a gas condensing boiler. The units are noisy anyway. I originally wanted to maintain good relations with my neighbors; with an air-source heat pump, that probably won’t happen. And they are power-hungry too, and at these prices, it’s not necessarily worth it. As I said, compared to a gas condensing boiler. That’s my opinion.
There are already ideas to power air-source heat pumps with gas instead of electricity. Maybe that will appear on the market eventually. Then people will start converting again. That’s how the market works. First, convince people, then sell, and then introduce better products to the market and sell those again, and so on...

Vit84 schrieb:
...I requested several quotes, and in every offer the air-source heat pump was significantly more expensive than the gas condensing boiler.

Gas condensing boiler plus connection costs are usually about the same as an air-source heat pump ;-)

Vit84 schrieb:
...The units are loud anyway.

Not all of them. Also, if you don’t want the evaporator outside, you can opt for a fully indoor installation.

Vit84 schrieb:
...Well, they also consume a lot of electricity, and at these prices, it’s not necessarily worth it. As I said, compared to the gas condensing boiler. That’s just my opinion.

A very superficial view. Sure, air-source heat pumps use electricity, but their consumption is lower than the actual heat demand because they use environmental energy. With gas condensing boilers, consumption is always higher than the demand, since there is no loss-free heat generation!

Vit84 schrieb:
...There are already thoughts about running air-source heat pumps with gas instead of electricity.

Such systems already exist. Whether that makes sense is questionable, though. Using a combustion engine with poor efficiency as a drive is rather unfavorable, not to mention the maintenance and servicing effort. With an air-source heat pump, achieving subsidy levels is much easier, and you don’t have to buy uneconomical solar thermal systems as an additional investment.

Best regards

NB:
If you haven’t determined the actual demand of your building project (capacity, energy) for heating and hot water, a reliable assessment is hardly possible. Until then, it’s mostly guesses, assumptions, or speculation.