Weather compensation allows a heat pump to automatically adjust its flow temperature based on the outdoor conditions. Running at lower flow temperatures improves efficiency, reduces running costs, and maintains consistent comfort.
An outdoor sensor feeds into a compensation curve that links outside temperature to the required flow temperature. Setting this curve correctly is essential: if it’s too high, energy is wasted; if too low, the system may struggle to heat the home in cold weather.
For example, the heat pump may supply 40°C flow at -3°C outside, but only around 25°C when the temperature rises to 15°C.
Benefits of weather compensation:
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Improved efficiency through lower operating temperatures and reduced cycling
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More stable comfort by anticipating cold weather and avoiding overheating in mild conditions