Heating with air and geothermal heat - Viessmann
Heating with air and geothermal heat - Viessmann
Heating with air and geothermal heat - Viessmann
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60/61Two thirds less fuel oilInitial situationDual mode systemOil boiler Oil boiler & Heat pumpOutputProportion of annual <strong>heat</strong>ing loadAnnual <strong>heat</strong> dem<strong>and</strong>Efficiency when <strong>heat</strong>ingEnergy dem<strong>and</strong>Proportion of DHWEnergy consumptionEnergy price*Consumption costs*18 kW100 %32,400 kWh90 %36,000 kWh3000 kWh3900 litres oil€0.85 per litre€331518 kW20 %6480 kWh90 %7200 kWh3000 kWh1020 litres oil€0.85 per litre€86718 kW80 %25,920 kWh330 % (SPF 3.3)7855 kWh––7855 kWh (power)€0.14 per kWh (HP)€1100Total* €3315€1967Savings ––approx. €1348* Average valueExample: <strong>Heating</strong> system <strong>with</strong> 55 °C maximum flow temperature, 1800 full utilisation hours, 18 kW <strong>heat</strong> load of the building. DHW <strong>heat</strong>ing by the boiler.House <strong>with</strong> 150 m 2 <strong>and</strong> an annual <strong>heat</strong>ing energy consumption of approx. 39,000 kWh incl. DHW <strong>heat</strong>ing (3000 kWh).
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