Modern wood fuel heating systems generally have
low levels of emissions and many come with cyclone filters as
standard.
However in some cases, such as when a wood fuel system is
located in an Air Quality Management Area, additional abatement
technology may be required.
Abatement technologies include:
- ceramic filters
- electrostatic precipitators
- bag filters
AEA Technology have produced a comprehensive report on the types
of abatement technology, effectiveness and costs for the Regional
Biomass Advice Network - links to these are listed at the bottom of
this page.
Emissions from individual boilers can be minimised by boiler
design, specification and rating, optimisation of air flow, fuel
type, and, quality and chimney height specification.
Small, manually-fed, wood fuel systems such as stoves, generally
have higher levels of emissions (though much less than other solid
fuels such as coal). These sort of systems are more appropriate in
rural areas where other sources of emissions are of less concern
and there is a lower density of buildings.
All solid fuel combustion produces emissions, including small
particulates and nitrogen oxides (NOx) and it is important to
ensure your system complies with air quality regulations.
The Renewable Heat Incentive has
set a minimum standard for emissions from biomass systems, so you
should check your system meets these requirements or consider
additional abatement technology.