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Learn the best boiler temperature for winter, how radiator flow temperature can reduce gas use, and how to adjust your settings safely without removing the casing.

Most radiators can stay when you replace your boiler. Here's how to tell which are worth keeping and what usually needs changing instead.

Learn how to identify a stuck radiator valve, check the TRV and lockshield, and safely free a seized TRV pin without damaging your heating system.