Why pellets?
The wood pellets are compressed under high-pressure sawdust.
The final product has a 6-8 mm diameter and moisture content up to 8%. From consumer’s perspective, the pellets are extremely convenient fuel, with great options for storage and regulation of the burning process.
Unlike other types of solid fuel, the pellets are easy to work with and the ash residue is minimal. The thermal comfort that is produced is no different from that of the natural gas.
The long term perspective of this kind of fuel is to become less expensive than the natural gas.
Available in packages of 15kg is making it convenient for loading in the fuel bunker of your fireplace or water-heating boiler.
National 7's pellets:
For comparison: the burning of 2kg palettes is equivalent to 1l disel
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Compare to other fuels
The calculations given in the example are made for average daily load of 8 hours, 31 days a month for 8kW daily load sufficient to heat an average family house with 80m² living area (200m³ heated volume)..
| Fuel | Calorific value | Efficiency of the boiler | Price of fuel | Specific cost of heat | Heating costs for 1 month |
|---|---|---|---|---|---|
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Lignite
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3,72 kWh/kg | 70% | 150,00 lv/t | 0,058 lv/kWh | 157,1 lv/month |
| Firewood | 3,14 kWh/кг | 70% | 145,28 lv/t | 0,066 лв/kWh | 180,3 lv/month |
| Electricity | 1,00 kWh | 99% | 0,171 lv/kWh | 0,172 lv/kWh | 470,6 lv/month |
| LNG | 9,01 kWh/m³ | 90% | 804 lv/1000 nm³ | 0,099 lv/kWh | 270,5 lv/month |
| LPG | 12,80 kWh/kg | 90% | 2 101,56 lv/t | 0,182 lv/kWh | 497,5 lv/month |
| Diesel | 11,63 kWh/kg | 88% | 2 057,41 lv/t | 0,201 лв/kWh | 548,4 lv/month |
| Industrial oil | 10,98 kWh/kg | 88% | 1 900,29 lv/t | 0,197 lv/kWh | 536,6 lv/month |
| Wood pellets | 4,88 kWh/kg | 88% | 380,00 lv/t | 0,074 lv/kWh | 241,2 lv/month |
The table above shows that heating with lignite and firewood is cheaper, but lignite excrete a large amount of ashes (on delivery, while loading the fireplace, after combustion) and the firewood has many additional operations (cutting, splitting, sorting, frequent refuelling of the fireplace).
Using pellets
The pellets are used as an easy, convenient and clean type of fuel in modern, fully automated boilers. The ease of use is comparable to that of fuels such as diesel and natural gas, but at a much LOWER cost!
The pellets produced by National 7 are made out of fresh beech wood, which guarantees 100% combustion and a minimal amount of ash.
Advantages when using palettes:
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Pellets are also suitable for interior fireplaces, creating unique ambiance and romantic atmosphere.
