Low temperature radiators: one room sets 73 °C, five swaps reach 55 °C

Which room decides your flow temperature with radiators? In the HeatAlgo reference house with an example radiator set (type 22, sized from a catalogue at 75/65/20), the living room alone needs 73 °C: it loses 1340 W, and its radiator gives 762 W at 55/50 °C. Swap that radiator and the house drops to 69 °C, then 66, 60 and 55 °C after 5 of 8 radiators are swapped (5 K spread, EN 442-2).
How to find the one room in your house:
#radiators #heatpump

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