Will it provide enough hot water for baths showers & domestic hot water?
With the correct design and equipment, all domestic hot water requirements would be provided by the air source or ground source heat pump throughout the year. Heat pumps produce water at a lower temperature than boiler systems. Instead of water that may be scalding water produced is hot enough for all normal domestic requirements. You will notice that you do not have to add as much cold water to your baths and showers. The aim is to save money and energy with either an air source or ground source system. There is no point in taking water to temperatures that can't be used anyway (above 55°C).