Under the Clean Air Act 1993, some chimneys which serve industrial or business furnaces or boilers, need approval from the local authority before use.
We will need to check for adequate dispersion of flue gases, so that nuisance is avoided.
This applies to chimneys (serving industrial or business furnaces or boilers) used to burn the following fuels:
- pulverised fuel
- any other solid matter at a rate of 45.4kg/hr or more
- any liquid or gaseous matter at a rate of 366.4kW/hr or more
Apply for chimney height approval
Applications can be made via our online form. There is no charge for this application.
Apply for chimney height approval
We aim to make a decision on any application within four weeks. Sometimes, we may need to request more information, before we make a decision.
Applicants should use the third edition of the 'Clean Air Act Memorandum on Chimney Heights' to establish the height of any chimney proposed. You may need to submit details of the calculation.