Cost Comparison of Heating a Detached House by Means of a Heat Pump and Solid-Fuel Boiler

The aim of article was to examine the issue of detached house heating costs depending on the type of heating system chosen. The demand for heat was defined by means of the Audytor OZC software. Based on the results obtained, the heating device was selected: a heat pump and an automatic solid fuel boiler with a coal feeder. The heat pump was chosen by means of Vito-WP software, where the seasonal performance factor was calculated. The role of selected devices was to heat and prepare hot domestic water for a family of four. Costs of energy purchase and heat generation were calculated for each solution on the basis of current market prices for eco-pea coal and electricity supply to the area. The results of the quantifying were summed up and compared with each other. Furthermore, the amount of annual operating costs usage permit the definition of economic effect and simple payback time out for the investment. Financial analysis also took into account the different prices of purchasing heating devices. Based on choice of heat source, the ecological effect was also demonstrated, permitting the amount of harmful substances emitted during normal use for each of analysed systems to be determined.