100 kWh heating energy
76 kWh primary energy
70 kWh renewable
energy
30 kWh mechanical energy
28 kWh residual heat
potentially usefull
18 kWh heat losses
(exhaust gas)
100 kWh heating energy
60 kWh primary energy
54 kWh renewable
energy
30 kWh mechanical energy22 kWh residual heat
14 kWh heat losses
(exhaust gas)
24 kWh mechanical energy
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