HL 320.08 Fan heater / air heat exchanger

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HL 320.02 Conventional heating

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HL 320.07 Underfloor heating / geothermal energy absorber

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ET 264 Geothermal energy with two-well system

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ET 262 Geothermal probe with heat pipe principle

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HL 320.05 Central storage module with controller

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HL 320.04 Evacuated tube collector

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HL 320.03 Flat collector

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ET 250.01 Photovoltaic in grid-connected operation

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ET 250.02 Stand alone operation of photovoltaic modules

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ET 252 Solar cell measurements

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ET 250 Solar module measurements

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HL 313 Domestic water heating with flat collector

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ET 202 Principles of solar thermal energy

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HL 320.01 Heat pump

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ET 102 Heat pump

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ET 405 Heat pump for cooling and heating operation

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ET 101 Simple compression refrigeration circuit

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ET 420 Ice stores in refrigeration

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