Solar heating

Given that the extent of sunshine in Slovakia is 1400 – 2000 hours a year, solar water heating is a very interesting and sought-after application for renewable energy solutions in households.

The basis of photothermic technology, or solar heating, are solar collectors, whose task is to ensure this transformation with the highest efficiency possible (40-65%). The heat energy is then distributed, through a connecting pipeline and a circulating pump with a control system, to storage tanks, which are used for:

• the distribution of hot service water,
• the distribution of water for heating,
• thot water for pools, saunas and other applications.

Solar heating is only possible with direct exposure of solar collectors to light; therefore it is optimally usable in our climatic conditions to produce hot water for households for up to 60 – 75 % of the annual consumption. For installation on industrial buildings or larger buildings, the heat production system is calculated as the optimal ratio to the investment provided or to the installation space.

To get a simple idea of the size of the solar system for a household, it is possible to consider a storage tank of 100 liters per person which is connected to solar collectors with an area of 1.5 to 2 m2 per person. Part of the solution is also a controller and pumps. Due to the unreliability of the supply of heat energy to the storage tank, it is necessary to ensure the presence of a storage tank with at least two or more heat exchangers (e.g. a connected gas boiler, solid fuel boiler, hot water fireplace, biomass boiler, electric spiral, a spiral for heating from photovoltaics and other) for the year-round water heating. Of course, for a cost-effective application, it is advisable to have a quotation and installation prepared by our certified specialists.