Use – room air conditioner > 12 kW (SEER 4,7)

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Use – multisplit air conditioner < 12 kW (SEER 3,2)

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Tube collector (Big plant > 500m2)

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Thermal energy from natural gas

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Thermal energy from lignite

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Thermal energy from light fuel oil (LFO)

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Thermal energy from heavy fuel oil (HFO)

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Thermal energy from hard coal

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Thermal energy from biomass (solid)

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Tap water from groundwater

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