Wood pellet stoves
A pellet stove requires a lot less attention than a log burning stove. An integral fuel hopper (into which bags of pellets are tipped) stores enough pellets for several days’ operation. This and the automatic feed system mean that there is no need for frequent refuelling. In addition, the large ash pan only needs emptying between once a month and once a year, depending on the level of use.
Other benefits of pellet stoves include:
Temperature and timer controls – sometimes via remote control.
A fan that distributes warm air around the room. This method of distributing heat means that the stove itself stays cooler than a wood burning stove.
Automatic ignition.
High efficiencies (up to 90%).
On the downside, a pellet stove does need an electrical connection to run the feed system, fan and automatic ignition – something to think about if you live in an area frequently affected by power cuts.
Wood pellet boilers
Wood pellet boilers are fully automatic just like oil and gas boilers. Pellet boilers use advanced microprocessors to control the amount of fuel and air being supplied to the combustion chamber. This ensures extremely high efficiencies (up to 90%) and ultra-low emissions.
No supervision of the equipment is required, although the pellet-burner will need cleaning about once a month. At the same time, the ash must be removed, although the quantity is small as the pellets burn very efficiently. Some pellet boilers have an integral pellet store which is manually filled, like a pellet stove. Others are designed to be fed via an augur from a separate pellet store.
Unlike log boilers, pellet boilers are well-suited to meet variable load demands without the need of a thermal store and can be operated on a timer. If space and ease of use are important issues, then a pellet boiler is the one to go for. If cost is a key issue and space and ease of use are less important then a log boiler might be preferred.
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