Biomass heating
Efficient heating with wood pellets
Heating with pellets is considered to be particularly cheap and efficient, thanks to their excellent fuel values. Pellets are also much easier to store than, for example, wood logs or wood chips.
Our innovative pellet boilers provide efficient heating for any home – much cheaper than oil or gas. The many benefits of pellet boilers make them a popular biomass heating option.
Major advantages at a glance:
When using pellets:
- Local fuel
- Short transport routes
- Easy storage: either in pellet bags or in pellet trucks
- Dust-free and odourless refilling
- Little space required for storage
- Efficient and modern pellet boilers
Pellets are a good form of heating compared to fossil fuels.

Quality Standards
Pellets are standardised according to ÖNORM M 7135 or EN 17225-2 – Class A1.
| Specification | ÖNorm M7135 | EN 17225-2 Class A1 |
|---|---|---|
| Heating Value | 18 MJ/kg = 5 kWh/kg | 16,5 < 0 < 19 MJ/kg = 5 kWh/kg |
| Weight | 650 kg/m³ | > 650 kg / m³ |
| Diameter | 6 mm | < 6 + – 1,0 mm |
| Length | 5 – 40 mm | 3,15 < L < 40 mm (99 %), L < 45 mm (1 %) |
| Water Content | w < 10 % | w < 10 % |
| Dust Content | < 1 % | < 1 % |
| Ash Content | < 0,5 % | < 0,7 % |
Energydemand for production: Approx. 2,7% of energy-content
Main
quality-criteria:
- Low dust content
- Hard & shiny pellet surface
- Wood without additives
Warning!: Please consider the quality when purchasing or receiving pellets:
- proven according to EN 17225-2 – Class A1
- Hargassner recommends pellets with the ENplus A1 quality seal














