A heat pump is a device that transfers solar energy stored there from a lower temperature environment (air, ground or body of water) to a higher temperature environment via a refrigerant.
With the help of a heat pump, we get free energy from the environment for heating or domestic water.
Efficiency indicators of heat pumps:
COP - coefficient of perfomance The COP or heat factor is a number that indicates how many times the appliance produces more heat than the electricity consumed.
COP = heating power kW / power consumption kW
The smaller the temperature difference between the heat source (ground, air, water) and the heating flow, the higher the heat factor.
SPF - seasonal performance factor SPF is the ratio of heat produced during the year (season) to energy consumed.
The SPF of the ground source heat pump is 3,5-4,5
The SPF of an air / water heat pump is 2,0-2,3
The SPF of an air source heat pump is 2,0-2,2
The service life of the heat pump compressor is approx. 80 operating hours.
With the right dimensioning of the heating system, the heat pump runs on average 3000 - 4500 hours a year.
The maximum required heating capacity of a private house per square meter of floor space is approx. 0,06 kW (0,06 kW / m2). For example, the maximum heating demand of a 150 m2 building is 150 × 0,06 = 9 kW. Electricity consumption for heating is divided into: approx. 60% night tariff and 40% day tariff.