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A snowflake or small house marking a reduced holding temperature.
Also known as: Frost protection setting, Holiday mode
A setback or frost setting holds a building at a low temperature rather than switching heating off entirely. It exists to protect pipes, and it costs less than reheating a cold building, which is the argument for leaving heating on low while away.
Holds a reduced temperature rather than switching heating off, typically marked with a snowflake or a small house.
Contexts: Electrical equipment
Exists to prevent pipes freezing, and reheating a thoroughly cold building generally costs more than holding it at a low temperature.
Contexts: Electrical equipment
A six-pointed star of crossed lines, or a small house outline, printed beside a temperature dial.