Once again the size of the boilers can range from 1kW to several MW’s. However, for smaller scale projects, costs tend to be high and it is only when you get to several hundred kW’s (district/community heating) of power output do the costs become economically viable. That said, the biomass boilers can be fitted to produce 100% of your heating requirements. They can also work in conjunction with Solar Thermal panels whereby the boiler kicks in when there is not enough solar heat to work the panels. Once installation is done the only running costs tend to be an annual service (circa £100) and purchasing of the biomass materials (usually wood pellets) .
| Annual Heat Requirement (kWh) | Fuel Requirements (Wood Pellets – tonnes) | Size of store m3 |
| 10,000 | 4 | 9.00 |
| 15,000 | 6 | 13.50 |
| 20,000 | 8 | 18.00 |
| 25,000 | 10 | 22.50 |
| 30,000 | 12 | 27.00 |
| 35,000 | 14 | 31.50 |
Visit the Biomass and Log Burners Home Page
Other pages of interest in this section:
- What is Biomass?
- How does it work?
- How much energy does it produce?
- How much does it cost?
- Are there Grants and Funding available?
- What is the Payback Period?
- Future Technology
- Overall Assessment
