Experiences with brine heat pump

2018-03-20 13:00:33

I quickly checked then:

2 x 80 meters, soil class 1-5,
7.7 KW extraction capacity,
all in gross 9,400
(Drilling net just under 6,700, probe connection net 1,250).
Drilled last month

2018-03-20 13:07:50

That really shows how quickly different extraction performance drives the price up. At some point, one must (rightly) ask whether something like that is still worth it.

2018-03-20 13:11:06

860 euros/kW to 1,220 euros/kW

That's a lean 40% increase, and it's not just the drilling company to blame, but the ground itself.

2018-03-20 13:22:48

Okay, I have checked now...

105m (3x35) in water protection area IIIa, soil class 1-5, 6,200W power output, completely pressed with connection up to the house, permit, etc. so basically all finished all in.

Gross 5,350.19 euros (Net 4,495.96)
Plus 250 euros for the city treasury.
(February 2015)

The price is insane. I got a quote today from a colleague at work for a 7kw system all in gross 14,900.

Now I’ll leave it at that and accept that I live in a “damn” expensive area.

2018-03-20 14:59:43

Regarding the experiences, bookstar, I can understand you. I would never pay €14,900 for drilling. That can't be made better by drinking it away. toxic, with the many and short drillings your price was really great. But your soil seems to be solid, I would like that too ...

2018-03-20 17:06:57

For a 6kw heating box you need about 4.6kw extraction power

Do I understand that correctly? If the heating load calculation results in 6 kW, the drilling is only done for 4.6 kW? I had previously assumed that the drilling would also be done for 6 kW or a bit more generously, possibly 6.5 kW.

Regards
denz

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Experiences with brine heat pump

Wickie

toxicmolotof

toxicmolotof

Bookstar

Alex85

denz.