Hello,
We are currently considering whether an air-to-water heat pump is economically sensible for a house that meets the 2016 Energy Saving Regulation. The energy demand for the house (145m² (1560 ft²) of living space excluding 22m² (237 ft²) of hobby room in the basement) was calculated as follows:

The plan is currently to install an air-to-water heat pump from alpha innotec. Ventilation for the living area will be through windows; no mechanical ventilation system is planned.
Is it advisable to rely on an air-to-water heat pump here, or would other energy sources be more economical?
We are currently considering whether an air-to-water heat pump is economically sensible for a house that meets the 2016 Energy Saving Regulation. The energy demand for the house (145m² (1560 ft²) of living space excluding 22m² (237 ft²) of hobby room in the basement) was calculated as follows:
The plan is currently to install an air-to-water heat pump from alpha innotec. Ventilation for the living area will be through windows; no mechanical ventilation system is planned.
Is it advisable to rely on an air-to-water heat pump here, or would other energy sources be more economical?