Wood-Pellet Heater

The energy content of wood pellets is approximately 4.7-4.9 MWh/tonne[1] (~7450 BTU/lb).
High-efficiency wood pellet stoves and boilers have been developed in recent years, offering combustion efficiencies of over 90%. Wood pellet boilers - having limited control over the rate and presence of combustion compared to liquid or gaseous-fired systems - are particularly suited for hydronic systems due to the hydronic system's greater ability to store heat. In particular, pellet burners capable of being retrofitted to oil-burning boilers are predicted to be available on the market within the next several years.