To increase its output production an average company needs to fulfil all of the power and heat requests. Wood biomass, one of the most powerful and attractive, representative sources, has a very important place regarding its possibilities of energy usage. There also is a lot of this energy at our disposal. We have enough of it, apart to this; it is neutral and domestic source. Economy and quality of wood biomass depends on the suitable assortment, the right raw material and economy conditions on the market. We can talk about effectiveness, when we utilise maximum amount of energy stored in the wood, and to cause less negative influence to the environment. To understand the basic combustion processes the knowledge of physical and chemical composition of fuel is essential. At installing the boiler fired withwood, we need to plan thoroughly the entire heating system. When the company is faced with an accomplished fact that they need to place a new boiler house or to reconstruct the old one, the question is where to begin. The answer is a basic study of practicability made by a qualified performer. It has follow all the legislation and institutional frames until the final realization. Special attention has to be devoted to stimulation and impediment regarding realization of the project.