Biomass boilers are generally fired on wood products  to produce heat, rather than gas, coal or oil. The biomass will be burnt to produce hot water which will be used to heat Communal Building. As biomass varies in quality it is not easy to predict how much biomass we will need each year, but a rough estimate is 500 tonnes. This biomass will be stored in a compound behind the J B Priestley library. 

The boiler requires a consistent and high quality of woodchip free from metal, varnishes or other contaminants.

http://www.bradford.ac.uk/ecoversity/resources/Ecoversity%20biomass%20boiler%20briefing%20note.pdf