Coal is the most extensively used fuel for thermal power generation, but burning fossil fuels is a major contributor to air pollution due to carbon dioxide emissions. Biomass has a significant potential energy source and can be blended with coal to reduce emissions of greenhouse gases for example CO2, NOx and SOx. Unlike fossil fuels, burning biomass does not increase the quantity of carbon dioxide in the atmosphere because the carbon consumed for growth is offset. The combination of biomass and coal can also have environmental benefits by helping to limit climate change. This study analysed the combustion of coal (C) and rice husk (RH) blends at different weight percentages (5% (CRH05), 10% (CRH10), 15% (CRH15) and 20% (CRH20)) by performing Gross Calorific Value (GCV), Proximate, Ultimate and ash fusion investigations. The Proximate study showed that adding rice husk to coal reduced ash content and increased the carbon content with increasing biomass content. Ash analysis gives the oxides in the ash and the ash fusion test gives the temperature, at which point the ash melts. This is an important parameter to predict the chance of slagging and entangling in the boiler. This research delivers insight into the benefits of co-firing coal with rice husk.