How does a biomass boiler work?

How does a biomass boiler work?

A biomass boiler works by burning wood fuel such as wood pellets, wood chip or logs to create heat.

On a biomass boiler there is a storage area where the wood fuel is kept and then the actual boiler where the fuel is ignited.

The wood fuel is automatically fed into the boiler from the storage area and is then ignited by an auto start. The temperature is then controlled via an electronic thermostat.


See the images below:

Schnitt_PC_A1_EN_001 ETA Hack 


How biomass can heat your home?

There are two main ways of using biomass to heat a domestic property:

- A wood burning stove providing space heating for a single room.  These can be fueled by logs or pellets and are generally 5-11 kW in output. Some models can be fitted with a back boiler to provide water heating.

- A biomass boiler connected to your central heating and hot water systems. These are suitable for wood pellets, logs or chips, and are generally larger than 15 kW.


Find out what boiler is best for you -> Bioenergy biomass boiler flowchart




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