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Chimney heights

Under the Clean Air Act 1993, chimney heights have to be approved by the local authority. Unless approval is given, it is an offence to permit a furnace to be used to:

  • Burn pulverised fuel

  • Burn at a rate of 45.4 kg (or more) per hour, any other solid matter

  • Burn at a rate equivalent 366.4 kW or more, any liquid or gaseous matter

Applying for chimney height approval

If you wish to make an application for a chimney height approval please contact:

Phone: 01642 245432 (Monday to Thursday: 8.30am to 5pm, and Friday: 8.30am to 4.30pm)

An application form must be completed with the necessary information. The authority has four weeks, or longer by written agreement, to determine the outcome of the application.

Further guidance on the calculation of chimney heights can be obtained by reference to the Third Edition of the Clean Air Act Memorandum on Chimney Heights which is available from The Stationery Office, ISBN 0 11 751556 6.

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