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The Guardian - UK
The Guardian - UK
Lifestyle

Which uses the most energy: leaving the boiler on all the time, or using a timer?

a thermostat
Heated debate … permanent or timed? Photograph: Alamy

Am I saving energy by turning off the heat during the day and shivering? Or does it take more fuel to heat the house up again in the evening?
Beth Noakes, London NW3

• Post your answers – and new questions – below, or email them to nq@theguardian.com. Please include name, address and phone number.

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