| 摘要 |
The heater (10) has a closed heating fluid circuit (17) and a radiator (16) connected to a heat source with controls. The heater has a heat flow collector (21) with a detector (30,40) with an element sensitive to variations in heat flow. The collector is connected between the inlet and outlet (14,15) of the collector (11). The collector is connected to the control to show variations in the in heat flow.
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