Geothermal heat pump for a small single-story single-family house

What about it should be necessary? I have a little less than 300 heated with an air-water heat pump and pay 850 euros per year. But there are systems that are much more efficient than mine. And compared to geothermal energy, you certainly save 10 to 15k euros. There's even a free photovoltaic system with a battery on top of that.

Forget geothermal energy, it is absolutely economically nonsensical.

If only economic efficiency is the priority, may be right. You only have to ask the right questions if you want to get the affirmation of the brine-water heat pump as an answer.

Important for the efficiency of a heat pump is that the entire heating system is perfectly planned and executed. It is definitely recommended to familiarize yourself with the topic, as many heating technicians often do things by rule of thumb, which usually ends up going wrong. If it is a well-designed heating system, you can also opt for an air-to-water heat pump.

Just a general question. Is the attic going to be converted in the foreseeable future? Heat pumps should not be oversized but selected appropriately for the consumption.

What is supposed to be necessary about that? I heat just under 300 with an air-water heat pump and pay 850 euros per year. But there are much more efficient systems than mine. And compared to geothermal, you certainly save 10 to 15k euros. You even get a free photovoltaic system with a battery out of it.

Forget geothermal, it is economically absolute nonsense.

bookstar, your blanket posts full of ignorance regarding geothermal heating systems are the nonsense here.

Just a general question. Is the attic going to be converted in the foreseeable future? Heat pumps should not be oversized but chosen to suit the consumption.

We want to convert the attic later (maybe a hobby room with drywall construction and a small restroom). We want to insulate the wooden beam ceiling first.

Is there a guide or literature on which heat pump would be best suited for such a small construction project? Thank you.