Dear forum members,
I am planning to build a single-family house with a heat pump and want to carry out a deep drilling for this purpose.
Problems in my view – possible legacy issues from mining (Ore Mountains).
In another post, I also read that the local water authority has objected:
“Now the local water authority has thrown a wrench in the plans and does not allow deep drilling.”
Therefore, I would like to know where problems generally arise and how these can be identified early and avoided.
Best regards,
Florian
PS: The construction company believes that deep drilling would not be problematic.
PPS: I would prefer not to be surprised by insurmountable problems after the planning process.
I am planning to build a single-family house with a heat pump and want to carry out a deep drilling for this purpose.
Problems in my view – possible legacy issues from mining (Ore Mountains).
In another post, I also read that the local water authority has objected:
“Now the local water authority has thrown a wrench in the plans and does not allow deep drilling.”
Therefore, I would like to know where problems generally arise and how these can be identified early and avoided.
Best regards,
Florian
PS: The construction company believes that deep drilling would not be problematic.
PPS: I would prefer not to be surprised by insurmountable problems after the planning process.
Sebastian79 schrieb:
Since you are building according to the 2016 Energy Saving Ordinance, a 10 kW heat pump is likely oversized for the living area.
The drilling depth is also probably excessive – a reputable drilling company will determine the correct depth based on the heat pump’s extraction capacity and soil quality.
Without a heating load calculation, all these estimates are pointless and won’t lead to any useful result.What is the best way to proceed then?
Financing requires offers and some time for evaluation and processing.
The BAFA subsidy prefers an application before signing the contract.
However, the calculation is only available during project development (shortly before construction starts) ...
S
Sebastian7916 Mar 2016 21:55In the worst case, forgo the subsidy, because an incorrectly sized heating system will haunt you for the next 20-30 years...
Besides, the subsidy would have been used up anyway with the sizes previously planned.
It's just another disadvantage when everything comes from a single source, and that person is also uncooperative...
Besides, the subsidy would have been used up anyway with the sizes previously planned.
It's just another disadvantage when everything comes from a single source, and that person is also uncooperative...
T
toxicmolotof16 Mar 2016 22:02Guessing is pointless. Without calculations, no decisions should be made. This is a fact that everyone involved should be aware of, especially when it comes to BAFA. They do not even accept the correction of an error.
Good evening,
thank you for your contributions:
Are there any reliable sources on this? Before the heating engineer’s estimate with 50W/m (probably a pre-2016 Energy Saving Ordinance value?), I have often asked about the heating demand estimate and I would prefer not to show up empty-handed again.
thank you for your contributions:
Saruss schrieb:
10kW seems too high to me, just off the cuff.
Sebastian79 schrieb:
Since you are building according to the 2016 Energy Saving Ordinance, a 10kW pump is certainly oversized for the living area.
Are there any reliable sources on this? Before the heating engineer’s estimate with 50W/m (probably a pre-2016 Energy Saving Ordinance value?), I have often asked about the heating demand estimate and I would prefer not to show up empty-handed again.
You can have your heating load calculated based on the building geometry and construction materials.
I built to approximately KfW 70 standard according to the 2009 Energy Saving Ordinance, which is just considered "standard" by today’s building standards, including basement, ground floor, and upper floor with a few more square meters (m² (sq ft)) per floor, in a simple design. With my central controlled residential ventilation system, I have a heating load of just over 5 kW, including heating for domestic hot water.
I installed a heat pump that provides 5.8 kW at B0/W35, with the heating curve set to the lowest adjustable value.
Therefore, in my humble opinion, 10 kW is too much for a project like this.
I built to approximately KfW 70 standard according to the 2009 Energy Saving Ordinance, which is just considered "standard" by today’s building standards, including basement, ground floor, and upper floor with a few more square meters (m² (sq ft)) per floor, in a simple design. With my central controlled residential ventilation system, I have a heating load of just over 5 kW, including heating for domestic hot water.
I installed a heat pump that provides 5.8 kW at B0/W35, with the heating curve set to the lowest adjustable value.
Therefore, in my humble opinion, 10 kW is too much for a project like this.
Good day,
after estimating the heating load and receiving an assessment from the company Viessmann, we will ultimately go with a 6 kW heat pump.
Now, the deep drill contractor is submitting an application to the water authority, and I need to decide whether to use geothermal energy for 20-30 years (cost 250€) or permanently (cost 600€).
I actually want to heat with geothermal energy permanently. So what is the purpose of the option for 20-30 years?
Do you have any experience with this?
Thank you very much.
after estimating the heating load and receiving an assessment from the company Viessmann, we will ultimately go with a 6 kW heat pump.
Now, the deep drill contractor is submitting an application to the water authority, and I need to decide whether to use geothermal energy for 20-30 years (cost 250€) or permanently (cost 600€).
I actually want to heat with geothermal energy permanently. So what is the purpose of the option for 20-30 years?
Do you have any experience with this?
Thank you very much.
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