Invention is related to utilisation of solar energy and heat pump energy for heating of premises and hot water preparation. Heat supply system comprises moisture collectors placed in the ground. They are made of water resistant material and has a shape of box equipped with water overflow openings. The top of collectors is filled with mulch. This technology provides heat exchange between soil and pipelines because of artificial and temperature increase in the soil. Heat pump heat removal pipes are placed in the moisture collectors parallel to pipeline system that is connected to solar colector and existing pipeline system by means of three-way valve. This system is used all year around - in the winter solar energy is used to heat up the soil to increase efficiency of system and improve heat transfer coefficient between heat pump pipelines and the soil. During the rest of the year solar energy is used to prepare hot water. Placement of pipelines depends on diameter of heat pump pipeline.
