Prior to the introduction and general implementation of the use of fossil fuels (carbon, oil and gas) biomass was used for heating buildings. Wood was collected from forests in order to burn it in open fires, heaters and heating stoves, whereby the heat from the combustion could be used to cook, bake, heat the room, and also to heat water for DHW services and in certain cases, in order to send heat to radiators in other parts of the home.
The biomass which is currently used for heating, nonetheless, has the same origin and is used in essentially the same manner, however must comply with the requirements applicable to current heating installations, and must also provide the same degree of comfort, automation and efficiency with the significant enhancement by which renewable fuels are used, which is neutral in CO2 and with the option of local production.
The biomass boilers are similar to the oil boilers, however are somewhat larger. Similarly, the volume of fuel is also greater. The biomass boilers produce ash, depending upon the fuel used, of between 0.5% and 2% of the burned fuel. Said ash can be used as fertilizer, or can be discarded as domestic waste.
The initial investment is somewhat higher, however the savings in fuel costs provides for the timely amortisation of the increased initial investment. Furthermore, public subsidies and tax benefits exist (Personal Income Tax refunds) for the promotion of the installation.