Accumulator

Heat is stored either for cost reasons (e.g. night tariff ) or for the reason that the output of heat production (e.g. solar, wood or heat pump heating) and the required output (e.g. need for domestic water) vary. In water circulation heating systems heat is stored by means of a heating device into the water of the thermal storage tank. The thermal storage tank is equipped with an efficient heat storage and discharge technique, and the energy is consumed from the tank to the heating of the building or domestic water. Regardless of the source of energy used or the technique applied to heating, modern heating devices are required to be versatile, energy efficient and environmentally friendly. A thermal storage tank has a central role in a modern heating system because it is independent of the source of energy. It allows different forms of energy to be connected together and used in parallel, and on the other hand, the changing of the source of energy in the future.