We assume that a building with good insulation and good quality joinery will also have lower heat losses. Add to this slightly oversized radiators and continuous heating with a heat pump without interruptions, and the building can be heated even at temperatures below 60 °C, which means that a high-temperature heat pump is not needed.

How do you prepare domestic hot water when heating or cooling with a heat pump? There are several options for heating domestic hot water:

• Choose a heat pump for heating with an integrated boiler.
• Only add a standing boiler to the heat pump for heating.

If you heat the premises with another source and want to heat the domestic water with a heat pump, you have the option of choosing a heat pump that is only used to heat the domestic water.