Industrial & Commercial Chimneys

Biomass Boilers

WRS has seen a increase in the installation of such boilers in commercial and industrial settings. The implementation of sustainable heating systems are welcome however they are a source of air pollution regardless of their green credentials. Biomass boilers generally generate particulates and oxides of nitrogen and these pollutants can have a negative impact on local air quality and human health. It is therefore essential that the dispersion of such products of combustion are dispersed effectively into the environment with a correctly designed chimney.

Biomass boilers are regulated in a variety of ways (depending on the size of the boiler) and WRS requires additional information to make the appropriate assessment for compliance. WRS have powers under The Clean Air Act 1993 to request the measurement of dust emissions from the biomass boiler exhaust stack and require arrestment plant to be installed to control dust emissions if required. The act is primarily aimed at controlling smoke, grit and dust. This legislation does not serve to mitigate fine particulate matter emissions.

The technical details of the biomass boiler, emission concentrations, fuel specification, fuel storage and delivery arrangements in addition to a determination of stack height must be submitted to us for approval. The biomass boiler information form should be completed and included with your planning application if planning permission is required. The information request can be downloaded below.

Biomass Boiler Information request form (This file may not be suitable for users of assistive technology. Follow the link about how to request it in an accessible format.)

It is also possible that you may require planning consent as part of the installation and it is recommended that you contact WRS to discuss your proposals prior to making a formal planning application. The Carbon Trust has useful information about installation.