Hello everyone, we are planning to build soon in the district of Freising and are unsure whether it is better to install a ground-source heat pump with boreholes or a water-to-water heat pump with a well.
What kind of costs (rough estimates) should we expect if a well or boreholes need to be installed?
It would also be helpful to know the advantages and disadvantages of each option.
Our reason for not wanting an air-to-water heat pump is that currently there are no air-to-water units that achieve a seasonal performance factor (SPF) of 4.5 or higher when you input the values into the SPF calculator. We need 4.5 for subsidy eligibility.
What kind of costs (rough estimates) should we expect if a well or boreholes need to be installed?
It would also be helpful to know the advantages and disadvantages of each option.
Our reason for not wanting an air-to-water heat pump is that currently there are no air-to-water units that achieve a seasonal performance factor (SPF) of 4.5 or higher when you input the values into the SPF calculator. We need 4.5 for subsidy eligibility.
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freisinger6 Feb 2020 07:21@Woogl: Did you install the ground collectors yourself or have them installed by a professional?
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nordbayer6 Feb 2020 07:32Water means a lot of maintenance and trouble in the long run if you are unlucky.
An air-to-water heat pump with subsidies might be an option, depending on heating capacity requirements, insulation, and the design of the underfloor heating system. What is the standard outdoor temperature according to the new climate map from the Federal Heat Pump Association?
An air-to-water heat pump with subsidies might be an option, depending on heating capacity requirements, insulation, and the design of the underfloor heating system. What is the standard outdoor temperature according to the new climate map from the Federal Heat Pump Association?
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freisinger6 Feb 2020 14:31-14 degrees. According to my heating engineer, low-temperature heating is not eligible for subsidies. There is a parallel thread on this topic.
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