Heat generation from wood sources has made great strides in terms of efficiency, ease of operation and reduced emission.
The use of large capacity hoppers with modern boilers, in combination with intermediate heat storage and retrieval systems, has made it possible to re-stoke boilers only once or twice a day. Modern fire wood boilers, or so-called wood gasification boilers are outstanding in terms of fuel consumption and low off-gas temperatures.
Wood fired boilers operate most efficiently at maximum capacity, producing minimum off gases. The heat output cannot always be utilized instantly and therefore, when necessary, needs to be transferred to an intermediate heat storage, from where heat is retrieved, to be utilized in radiators, floor heating or hot air systems. Maximum energy utilization is achieved with the use of low temperature systems and low temperature radiator-based heating installations.