A device that extracts heat from the outdoor air and distributes it to the relevant rooms via indoor units (the principle of an air conditioner with a reverse function).
A heat pump normally operates within an outdoor temperature range of from -20 up to +35 or even 40 degrees of outdoor temperature.
In case of extremely low outdoor temperatures there is no need to purchase an additional heat source, because the indoor unit is equipped with a powerful electric backup heater.
The heat pump also works in reverse mode – so if needed, it can also be used to chill water in the summer season.
Very low costs for heating and domestic hot water – roughly one third of the usual.
