WOS: 000358995000009This paper presents a comparison of the LCC of five heating systems in four climate zones in Turkey. While being a country with huge renewable energy potential, Turkey's energy demand is met to a great extent by imported energy sources which constitute a substantial economic burden for Turkey. In this study, we analyzed the most common heating technologies, namely geothermal district heating systems (GDHS), natural gas-fired boilers, pellet-fired boilers, ground coupled heat pumps (GCHP) and coal-fired boiler technologies in terms of various criteria including life cycle cost (LCC), accessibility, initial investment cost, technical infrastructure, resource cost and annual heat cost. This study is vital to determine the s...