Gas heating or heat pump air (Mitsubishi?) or groundwater

Hello,

basically, you can never really say for sure now, but maybe only after 5-10 years with certainty whether the heating system you ultimately chose was a good choice. The development of gas and electricity prices certainly plays a big role.

Since we are planning a single-family house in Bavaria with about 180-200 m², the question of the "right" heating system also arises. After initially being interested in the fuel cell heating system, which generates heat and electricity with gas, I am currently more stuck between a normal gas heating system or a heat pump. The fuel cell heating system is simply still too "new" and untested, I think? Maybe it will be an option in 15-20 years.

- gas heating system with relatively low acquisition costs, good efficiency, and if gas prices don’t explode, I think the most cost-effective purchase? Also, it doesn’t need a fan outside the house that hums and somewhat spoils the appearance of the house? Of course, you never know how environmental policies will deal with gas heating in the future. This purchase could of course backfire.

alternatively, the

- air heat pump. Since we are also planning a photovoltaic system, you might be able to cover the operating costs (electricity) mostly with your own photovoltaic power? Sure, in winter, when it gets very cold and photovoltaics don’t generate much electricity, probably not. An acquaintance told me about a Mitsubishi heat pump that only has to switch on the heating rod at -15 or -20°C. Before that, you only have electricity costs to keep the heat pump cycle running, right? Does anyone know the Mitsubishi heat pump? When does your heat pump switch on the heating rod?

- the groundwater heat pump almost scares me off because of the higher acquisition and installation costs? Drilling two wells, maintenance costs for the wells after a few years, etc. Or do you make that up again because of the better conditions in winter (no cold air, because the groundwater is actually always the same temperature)? So that the higher initial costs are still worth it?

How did you decide and why?

Thank you very much for your opinions and experience reports
Ludwig

You can find the thread hundreds of times here in the forum. The result is always: Most people are satisfied with their heating system, the additional costs for a particular heating system in connection with lower consumption ultimately disappear completely in the background noise with project volumes in new construction of several 100,000€.

We have a gas heating system and now after 2 weeks in the house (0° outside) I can't say anything negative.

It also depends on the type of house. We are sitting in a KfW55 WDVS shell, where probably almost the waste heat from the refrigerator and washer-dryer would be enough (exaggeratedly said). The heating system is currently mainly concerned with hot water, as the solar (water) yields are rather poor... ok, today the sun is shining.

When the heat pump turns on does not depend on the brand. It depends on your actual consumption and the design of the heat pump.
Do you heat 120 sqm or 200 sqm?
Do you want 21 degrees or 24 degrees?
Many south-facing windows or rather in the north?
Distance of heating loops, flow temperature etc.
Someone can certainly explain that to you better.

Ours has not used the electric heating element for a year. Although, according to technical data, it should have done so on some days in January and February.

Your heating system must match the house. You take what the general contractor offers or what your sanitary-heating specialist installs as standard.

You can find this thread hundreds of times here in the forum. The result is always: Most people are satisfied with their heating system, the additional costs for a certain heating system in connection with lower consumption ultimately disappear completely in the background noise with project volumes in new construction of several 100,000€.

We have a gas heating system and now after 2 weeks in the house (0° outside) I can’t say anything negative.

It also depends on the type of house. We are in a KfW55 ETICS shell, in which probably almost the waste heat from the refrigerator and washer-dryer would suffice (exaggerating). The heating currently mainly takes care of hot water, since the solar (water) yields are rather poor... okay, today the sun is shining for once.

How does something like that work? We also have a KfW55 house and currently the heating runs 24h at minus 3 degrees and consumes a lot of energy. Heat pump. It only makes hot water twice a day.

We also have a Kfw55 house and currently the heating runs 24 hours at minus 3 degrees and consumes a lot of energy. Heat pump.

That must not be. Something is wrong.

That must not be. Something is wrong.

You think so? It’s the same with my acquaintances who also have heat pumps. They are also inverter controlled. However, my consumption is significantly higher, don’t know why.