| Through pressure and heat, it is possible to form | | | | generally range from 10KW upwards, however |
| organic fuel sources into pellets, like wood pellets | | | | they are not generally located in a room in the |
| for example. Wood pellets for example are made | | | | living space. Pellet boilers are normally placed in a |
| from compressed wood waste from the wood | | | | utility room or on the outside of the property. |
| industry, generally from sawmills etc. The pellets | | | | The maintenance involved with a pellet boiler or |
| have a uniform density, size and shape and | | | | stove is more than with an oil or gas boiler, |
| systems can be designed around this standardised | | | | however much less than a log stove or boiler. |
| fuel. For using pellets as a heating source, pellet | | | | Pellet stoves and boilers can feed themselves |
| stoves and boilers are available. Pellet stoves are | | | | through a variable speed auger feed system. The |
| generally form small, low energy demand buildings | | | | feed system is controlled by a microcomputer to |
| and boilers are for larger buildings with a central | | | | feed enough pellets to reach the desired |
| heating system. The pellet boiler can simply | | | | temperature. The temperature is set via a wall |
| replace the current oil or gas boiler and use the | | | | thermostat, the same that are used to operate |
| existing pipe work and radiators. Pellet stoves | | | | the temperature on a gas or oil boiler. Pellet |
| provide heating via convection air heating. This | | | | stoves and boilers are also self-igniting via a hot |
| means they are generally used to heat the main | | | | rod system. This means they can be set to turn |
| room of the property or are used to spread heat | | | | on or off at specific times. Due to the high |
| through the building via air vents. Some pellet | | | | efficiency the pellets produce very little ash, much |
| stoves provide heat via convection heat and a | | | | less than burning logs. Depending on the size of |
| back boiler, this means the stove will provide heat | | | | the ashbin, ash removal maybe required daily, |
| to the room in which it is placed and the rest of | | | | weekly or even monthly. Some units have ash |
| the property via the central heating system. | | | | compression systems to reduce how often the |
| Stoves of this type typically provide up to 10KW | | | | ashbin needs to be emptied. Pellet stoves and |
| of heat, which is sufficient for the average sized | | | | boilers make it possible to use an environmentally |
| home. Making the building as efficiently insulated as | | | | friendly fuel, with similar convenience and low |
| possible is also very important. Through proper | | | | maintaince of oil and gas systems. The low |
| insulation a small pellet stove can heat the | | | | maintenance ahd high efficiency of pellet systems |
| property, and it will also use less fuel. Pellet boilers | | | | is appealing to more and more people. |