ALL ABOUT pellet boilers (λεβητες πέλλετ)

Posted by Web Design on 02:36 AM, 07-Jun-13

Pellet fireplaces are appliances that burn small pellets which appear to be rabbit feed made out of organic materials for example compacted wood chips, sawdust, barks etc. Some also burn corn kernels, nutshells and wood chips. They are really easy to operate as well as their efficiency and combustion is higher in contrast to stoves or fireplaces and plays a part in the least smog. Their heating capacities range between 8000 to 90000 btu/hr. As a result them suited to apartments, condominiums as well as homes.


Two types of pellet fuel appliances can be obtained fireplace inserts and freestanding stoves. Fireplace inserts are fit into existing fireplaces. Pellet-fired boilers and furnaces supplement gas and oil fired boilers and furnaces in your house heating systems.

Besides, these appliances can take the pellets until they are required for use. It has a feeder device which drops several pellets in to the combustion chamber per time. Latest models comprise of small thermostat and computer to control the feed rate. A flue pipe which can be upwards towards the roof or the sidewall is used to discharge the exhaust gases.

Pellet-Feeding Systems

There are 2 systems bottom-fed and top-fed pellet stoves.

In top-fed stoves the auger feeds the pellet in to the side or the top of combustion chamber with an angle. This minimizes the probability of &ldquoburn back” although the system cannot keep ash from your firebox grate. Leading to formation of clinkers with the grate impeding air-flow and the fire dies out because of this. Requires low ash pellets.

Bottom-fed systems move pellets horizontally in the combustion chamber. Ashes and clinkers are shoved aside by the incoming pellets.

Combustion Air Controls

These appliances use draft-inducing fans to provide and vent combustion air and gases respectively. The down sides associated with using this method are reduced by abiding ton, maintenance and operations instructions and through use of low-ash pellets.


Where a product is installed depends upon it type. Fireplace inserts are positioned in already existing fireplaces whereas freestanding stoves can be placed in the large free space. You must however keep to the installation guidelines from the manufacturer in order to ensure safety and operational efficiency.


Reduce rusting from the system by removing unused pellets once heating is done with, increasing of suit may also be reduced to minimum in the event the flue vent is frequently cleaned.

For proper use, regularly inspect the motors and fans and effectively maintain them. Furthermore, remember to refer to the manual in the manufacturer regarding its maintenance and operation.

Quality, Standards and Option of Pellet Fuel

Quality: many pellet fuels have a moisture content of 5-10%, when compared with wood's 20%. Pellets from agricultural waste produce more heat than wood while they have higher moisture content.

Standards: there are two grades of pellet fuel Standard and premium. This disparity is due to improvement in the amount of inorganic ash. Standard contains utmost 3% while Premium has not more than 1%.

You should be guaranteed to buy pellets with proper ash content since the majority pellet stoves will not likely operate properly with the wrong pellet type. However, manufacturers have redesigned and designed their stoves to burn pellets of ash contents.

Availability: Within the decades the availability of pellets has expanded significantly. Today there are about 30 manufactures of pellet stoves and inserts. Prior to buying an appliance, make certain you can access a dependable pellet fuel supplier and still have knowledge of the available fuel. Dealers within the appliances will also be suppliers with the fuel or may recommend a trusted supplier. Nevertheless you can even examine the phone director (under &ldquofuel” or &ldquopellet fuel”) or inquire at the local garden supply stores or tree nurseries.

Benefits and limitations of pellet burner (καυστήρες)

Benefits: They normally are cleaner, safer and much more convenient rather than a amount of wood appliances. Additionally, they pose little fire hazard and require no cleaning.

Limitations: In spite of the advantages, they are complex as well as their components are incredibly expensive. They require electricity to operate the pellet feeders, controls and fans.

Cost of pellet fireplaces (τζακια pellet) and fuel

Generally, pellet burner (καυστήρες) are simpler to install than other heaters such cordwood-burning heater. Additionally, the expense of pellet fuels is around $120 to $200 per ton or perhaps $3 to $4 per 18kg. Therefore pellet-fuel appliances often are cheaper to function compared propane-fuelled appliances and resistance heating.

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