Heating with ice, ice heating for single-family house, experience reports

But you do know what autarky means?

Otherwise, great concept, thanks for the experience.
I thought about it myself during the planning, but discarded it, it somehow seemed too exotic and expensive to acquire.

You are right, it would actually only be self-sufficient if I were to additionally couple it with [Photovoltaik]. Autonomous would be the correct term.

We have also looked at it and calculated it. Apart from the fact that it would have been significantly more expensive, it had too many disadvantages for us (peak power too low). Currently, it would be problematic at temperatures (below -10°C). The systems are becoming increasingly sophisticated. Whether it makes sense also depends on the local conditions and the building. You also have to maintain the probes from a deep borehole at some point...

hello rick2018

I don't find it significantly more expensive, except when you compare it to a gas heating system. The 30,000 euros included the ice storage tank, the heat pump, installation, and the associated collectors on the roof, as well as the pipes, at least at the time for me.
If you add up a normal heating system plus solar collectors (which don't even have the same efficiency), you are not that far off either.
Regarding the temperature, we have already had several winters where it dropped to -20 degrees and even lower here.
That's not a problem; that's what the storage is for. If it is warmer on the roof, which happens every winter and will probably happen even more often in the future, it gets the heating energy not from the tank but from the roof. Basically, you heat with an ice heating system 90% of the year (this is not a study but just said offhand) with the collectors from the roof and only on freezing cold days from the tank.
So this is intended for the peak, and this tank lasts a long time.
This circumstance was not clear to me during the evaluation, and I was all the more pleased afterward, especially since the collectors (they are pipes, so nothing flat) already show their effect when it goes above freezing on the roof. So also at night, when the wind blows through with +10 degrees.
For me, this led to the paradoxical situation that I have to pay more per month for my expandable DSL connection than for heating and hot water.

best regards

By the way, this was about testimonials, after 6 years mine have matured enough to be able to communicate that for those who are still considering it. There is already a significant lack of reports on this heating system, which at the time did not make the decision easy for me either.

I spoke about our construction. It didn't fit there. We also want to heat the 110m3 pool sometime. You should already have 100kw "left over" and that for a longer period. You really need a lake as an ice storage ;) For our house, it would have been six figures. I think it's a good system. But you have to weigh it up for each property (like any other system). With the current snow conditions here, nothing is coming off the roof anymore. We could have still thawed the storage with our source. Without the pool topic, it would have been shortlisted. The TE should provide more information.