Hello everyone,
I would like to get your feedback on our offer for the heat pump and also your thoughts on groundwater heat pumps in general.
We are currently planning to use groundwater as the heat source and have received the following offer. It includes the complete installation of the underfloor heating, connection of the heat pump, etc. Only the drilling for the two wells would be an additional cost.
Water-water heat pump Ochsner GMWW 11 plus
Ochsner buffer tank PU800
Ochsner domestic hot water module
230 sqm (2,475 sq ft) underfloor heating including insulation
Various small components such as room thermostats, etc.
The total price is €30,100 gross.
What do you think? Is this a good offer? Is a groundwater heat pump a sensible choice?
I would like to get your feedback on our offer for the heat pump and also your thoughts on groundwater heat pumps in general.
We are currently planning to use groundwater as the heat source and have received the following offer. It includes the complete installation of the underfloor heating, connection of the heat pump, etc. Only the drilling for the two wells would be an additional cost.
Water-water heat pump Ochsner GMWW 11 plus
Ochsner buffer tank PU800
Ochsner domestic hot water module
230 sqm (2,475 sq ft) underfloor heating including insulation
Various small components such as room thermostats, etc.
The total price is €30,100 gross.
What do you think? Is this a good offer? Is a groundwater heat pump a sensible choice?
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neubau201922 Nov 2019 10:24What is the noise level in dB specified by the manufacturer for your heat pump?
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boxandroof22 Nov 2019 11:20I just looked up 47/49. It’s this model: WH-MDC05H3E5
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neubau201922 Nov 2019 11:44Thank you. Are you satisfied with the Panasonic? What annual performance factor and costs do you have per year?
Did you receive the BAFA subsidy?
Did you receive the BAFA subsidy?
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boxandroof22 Nov 2019 12:00No funding was available back then, as it was not yet listed with BAFA and would have been very limited anyway. Yes, I am very satisfied. The heat pump can now be purchased for €2500 (about $2700). The seasonal performance factor (SPF) is just above 5, including domestic hot water, thanks to extensive optimization and planning before construction. Annual electricity consumption is 1400 kWh (about 47000 BTU) per year. However, this varies individually depending on heating habits, location, and other factors.
For new builds, I would expect a seasonal performance factor of around 4.5 if typical planning mistakes are avoided.
For new builds, I would expect a seasonal performance factor of around 4.5 if typical planning mistakes are avoided.
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neubau201922 Nov 2019 13:40Those are excellent figures. How much area do you heat? I estimated a consumption of around 3000 kWh for our place... But 1400 would be really impressive!
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boxandroof22 Nov 2019 13:45Great performance, better than expected.
155m2 (1676 sq ft) in northern Germany, without a basement. Insulation between KfW55 and 40 standards, controlled mechanical ventilation. We heat to 21°C (70°F), hot water usage for 2.5 persons, and heating surfaces are planned for a maximum supply temperature of 28°C (82°F). With the photovoltaic system we just installed, I expect to purchase about 1000 kWh of electricity annually for heating.
155m2 (1676 sq ft) in northern Germany, without a basement. Insulation between KfW55 and 40 standards, controlled mechanical ventilation. We heat to 21°C (70°F), hot water usage for 2.5 persons, and heating surfaces are planned for a maximum supply temperature of 28°C (82°F). With the photovoltaic system we just installed, I expect to purchase about 1000 kWh of electricity annually for heating.
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