ᐅ 2 Quotes for Air Source Heat Pumps

Bauexperte schrieb:

Wikipedia® is not a verified source; anyone can write whatever they like, and in most cases, the statements there do not hold up under scrutiny.

Wikipedia is certainly not that bad. It is quite good, especially because anyone can correct an article.

Bauexperte schrieb:

With all due respect, that is nonsense. There is certainly room for debate on whether the use of an air-to-water heat pump makes sense or not; denying it its basic function is definitely not part of that.

An air-to-water heat pump no longer works at very low temperatures. That is unfortunately a fact. The temperature thresholds vary (Wikipedia says 0°C (32°F), but I’ve also heard -3°C (27°F)). Anyway, when an air-to-water heat pump only heats with the integrated electric heating element, it is no longer really functioning as an air-to-water heat pump, right? Personally, I know of two cases where the air-to-water heat pump failed last winter. One was in an architect-designed house, the other was a house by Viebrockhaus. The Viebrockhaus owner had to retrofit an additional electric heating element. Viebrockhaus claimed it was a software bug. I say it was so cold that the air-to-water heat pump simply couldn’t work. The heating system was no longer able to sufficiently raise the temperature of the heat source.

Bauexperte schrieb:

The decision to use a ground-source heat pump always depends heavily on the soil conditions and the associated costs – and, by the way, the manufacturers’ claimed values are rarely achieved. The choice of an air-to-water heat pump is usually made for pragmatic cost reasons. Both choices, however, reflect the move away from fossil fuels.

I completely agree. However, the move away from fossil fuels should not become a thoughtless dogma. Not to mention that a large part of the electricity required by air-to-water heat pumps in Germany still comes from hard coal and lignite power plants ;-)

Bauexperte schrieb:

Despite all the discussion and your support for gas condensing boilers, every builder should keep in mind that all the mentioned systems have advantages and disadvantages. Therefore: if the builder is unsure, it is best to stick with gas combined with underfloor heating and calmly watch the developments in the renewable energy market. That way, everything will work out fine 😉

That is very true :-) What a wise moderator we have here ;-)

By the way, a new generation of heat pumps powered by gas is expected soon. In addition to generating heat for heating and hot water, a generator will produce electricity and feed it into the grid. These systems are intended to achieve an efficiency similar to that of a gas condensing boiler. I find this quite interesting, but it is still a fairly new topic.

And you can also consider including a fireplace or stove that can be used additionally in winter to help heat the rooms…???