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Glossary. Heating technology
explained simply.

All about heating. From A to Z.

When it comes to heating, there are a few technical terms that need to be explained. You can find everything you need to know here. In alphabetical order.


The temperature of the Heating circuit  water flowing to a radiator. As a rule, the flow temperature in radiator heating systems is up to 70 °C (up to 40 °C in underfloor heating systems). The temperatures are only that high, however, when outside temperatures are low. If the outside temperature increases, then the flow temperatures decreases.