Why is a room temperature of 20C chilly in the winter but warm in the summer?

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Why is a room temperature of 20C chilly in the winter but warm in the summer?

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific concept

Why is it that in the winter when the house is heated to 20C I still need to wear a sweater and trousers to feel warm, whereas in the summer when it’s the same temperature without the heating being on, I feel comfortable in shorts and T-shirt?

Jennie Hurley, Exeter

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Source: Guardian

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