Traditional vs. alternative energy house heating source

摘要

The article discusses the economic analysis of two different heating systems. The first uses fossil fuel (Liquidized naphtha gas-^sLNG) to heat the building and domestic hot water. The second uses geothermal energy to do the same job. In both systems low temperature floor and wall heating was carried out. The economic analysis was performed as a pilot study for two real systems with all installation needed to make the comparable comfort. The analysis has been done using the method of the net present value. In the research the coefficient of profitability and the period of time in which the investment is going to return itself were established.