The geothermal heat energy is very important item in the energy balance of a definite object. The problem is that the source and the object are usually at a great distance. Therefore, a prerequisite for the construction of new objects is the possibility of using them for the needs of buildings themselves. The temperature of the geothermal waters on the territory of the Republic of Bulgaria varies in range as the available debit. This fact determines a detailed approach in the choice of a technical solution for the use of portable energy in waters. It is important also to be taken into account their primary purpose in the building- for medical treatments, spa treatments or just energy source supply.  A geometrical heat pump is a well-known technical option for building of indirect schemes for using geothermic heat. The best option is when this energy is being used as waste heat energy after its use for medical purposes and spa treatments. The use of heat has indirect effect on its performance by saving emissions released into the environment.  Some specific features in the design and installation of high technology equipment require also very high theoretical preparation of the designer, good database of the heat pumps manufacturer, good instructions for economic analysis proving the expedience of the investment.

In this connection I would like to put an emphasis on the costs of concession for water use that is of great importance as the price of electricity. Nowadays we become witnesses of constant price rising of electricity, that I would say is some kind of speculation and concerning the tempo of this growth we will soon turn to alternatives of liquid, gaseous and solid fuels. This leads to a shortsighted policy regarding the use of one of the most proven and attractive technologies- heat pumps as a mean of using renewable energy sources. Company "Termosyst" has significant area objects in this sphere: "Grand Hotel Velingrad", Hotel "Aquatonic" Velingrad, private houses. I want to make a difference between the systems that we have developed that effectively used waste energy in medical skiing, medical spa procedures and the systems that have received mass popularity- heat pump "water-water' using drilling in the yard and absorbing the energy of the surface waters with depth of 100 meters. A well-designed and built system based on the use of geothermal energy water is normally bought for three and a half heating seasons. Company "Termosyst" has a proved experience in the maintaining of building and maintaining of such type of systems.