This is our heat source (oil heating from hoval).

We heat our house with a heat pump from Hoval.

Heat pump with ground probe (Wärmepumpe mit Erdsonde):
We heat with a heat pump with ground probe. A heat pump with a ground probe consumes the least Co2 and is very energy efficient. It extracts heat from the earth at a depth of over 100 metres.

I sent an email to the administration of our house to ask what kind of heating we have and where the boiler room is located. Unfortunately, I have not received an answer yet. I will add to the post after I hear back from you.
We replaced our old oil heating system with an air-to-water heat pump in 2019. We had decided on this type of heating to get away from oil. One part of the house is heated by radiator and the other part by floor heating. However, the difference between the two heat exchangers is noticeable. The floor heating is by far more effective. In the living room we also have a wood-burning stove that you can light in winter.
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Dies ist eine Luft-Wasser Wärmepumpe. Es wird dabei der Umgebungsluft Wärme entzogen. Ein Ventilator saugt diese Luft aktiv ein und leitet sie an einen Wärmeübertrager weiter. Mit Hilfe von Dampf wird dann Wärme erzeugt.

We heat with oil heating. There are 6 houses in my neighbourhood, which all use the same heating system.

At my home we use crude oil heating. But in a few years we want to switch to a PV System.
Below you can see two pictures. I don‘t know a lot of our heat source.

At my home it looks similar like this picture.

This will be our target for the next years.
Sources:
Picture 1(vaillant.ch)
Picture 2 (suntastic.solar)
In our house we heat with convection heating. The air is taken from outside, heated and released in the house. When it gets too cold outside, we heat electronically.
However, we also have a fireplace where we burn wood from time to time in winter and heat the living room.
What is my heat source?
In our house we heat with a wood stove that is located in the kitchen.
That is our only heat source and we don't have anything else.
Our house is a very old one and that's the reason we don't heat with solar energy or electricity.
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