REH editorial starter discussion. Prepared by REH to invite genuine community replies.
REH starter discussion — UK.
Weather compensation adjusts the heating water temperature in response to outdoor conditions. The aim is enough warmth with the lowest suitable flow temperature, helping efficiency. The right settings depend on the building and heating system. Ask the installer to explain the curve and how to make small, recorded adjustments; avoid changing several controls at once and losing track of what helped.
Join the discussion: Is the issue slow warm-up, rooms being too cold, or unexpectedly high consumption?
Suggested next step: Ask the installer for a controls handover and a performance review if needed.
Sources checked 3 October 2026:
Energy Saving Trust: weather compensation: https://greenheattoolkit.energysavingtrust.org.uk/t/heat-pump-installers-toolkit/heat-pump-system-design/weather-compensation-and-other-controls/