Economic and Energy Analysis of the Operation of Windows in Residential Buildings in Poland

This article presents the results of economic and energy analysis operation five types windows in residential buildings. The aim this study was to determine (a) what extent construction various insulation parameters affect operating costs buildings, when using different heating systems, (b) significant cost purchasing with better is compensated by lower building (heating lifecycle windows), (c) how temperature difference inside affects heat loss through and, as a result, systems. Five were selected for detailed analysis: double- triple-glazed PVC window, wooden aluminum window. When double-glazed are replaced windows, return on investment occurs just 2 4.4 years. It also found that tested, total balance period most favorable regardless type glazing system. model over 30% than case almost 20% compared windows.