The National Association of Chimney Sweeps (NACS) recommends the following frequency;

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Wood - Quarterly when in use

Smokeless fuels - At least once a year

House Coal - At least twice a year

Gas / Oil - Once a year

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I will provide advice during the appointment on frequency, however as a general guide, for occasional evening and weekend use once per year is usually sufficient.

This can be dependant on fuel quality and the correct use of the appliance.

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