ᐅ Ground Source Heat Pump or Gas Boiler – Experiences?

Hello,

we are currently planning to build a house and are still uncertain. We would actually prefer a geothermal heat pump but are unsure if it still meets the requirements for KfW 55.

There is already a gas connection available because there used to be an old house on the site and the connections are in place. However, we also know that gas prices are rising quite a lot.

What are your opinions on this? Which option makes more sense?

It depends on how many square meters and which region.

tomtom79 schrieb:

Depends on how many m2 and which region.

Mecklenburg-Vorpommern. The house has about 156 m2 (1680 sq ft) and the plot is 1800 m2 (19,375 sq ft).

Or an air-source heat pump? It is more cost-effective than a ground-source heat pump.
However, with this property, a slinky ground collector might also be interesting. I’m not sure if there is still any funding available. If so, it might even be possible to install it yourself at little to no cost. At least, that’s what I’ve read.

Zipfel_21 schrieb:

We would actually like a ground source heat pump but are not sure if it still fits with the kfw55 standard.

If you want that, then go for it! Don’t let anyone talk you out of it. With your plot size, everything is possible.

KingJulien schrieb:

Or an air-source heat pump? It’s more economical than a ground-source heat pump.
Although for that plot, a horizontal ground collector might also be interesting. Not sure if there are still subsidies available for it. If so, you might be able to install it yourself nearly cost-neutral. At least, that’s what I have read.

Given the size of the plot, I would prefer a brine-to-water heat pump with horizontal ground loop collectors. Gas is not a sustainable energy source. With a brine-to-water heat pump, you can easily reach KfW 40 standard and still qualify for subsidies. You should calculate the costs for that. I would definitely also install photovoltaic panels as an additional measure.