Reason no.


Sustainable heating

Pellets are a renewable natural product and, unlike oil and uranium, they will still be available to future generations.

Conclusion: Wood pellets are future-proof!

Reason no.


Environmentally responsible heating

Pellet combustion is CO2-neutral. During the course of their growth, trees absorb CO2 that is released again during combustion – just like natural rotting in the forest.

Conclusion: Wood pellets are a CO2-neutral fuel!

Reason no.


Economical heating

The price comparison makes it clear: Wood pellets, the ecologically clean way to heat, are also economically attractive. Compared with fossil fuels such as fuel oil and natural gas, wood pellets are significantly cheaper. They are not only good for the environment, but also your wallet.

Conclusion: Wood pellets save money!

Reason no.


Resource-saving heating

No additional trees are felled to make pellets. Residual wood from wood processing is used for this purpose. Furthermore, more wood grows back in Austria and Europe every year than is taken out of the forests.

Conclusion: Wood pellets make optimum use of the raw material wood!

Reason no.


Independent heating

Pellets are a home-grown natural product. With wood pellets, you are independent of international crises and global developments.

Conclusion: Wood pellets are always available regionally!

Reason no.


Heating with regional fuel

When purchasing wood pellets, the added value remains in the country. This boosts the domestic economy and creates new jobs.

Conclusion: Wood pellets strengthen our economy!

Reason no.


Convenient heating

Pellets are extremely easy to handle. They can be delivered conveniently by lorry. Charging of the boiler takes place automatically by auger or vacuum suction system and operation of modern pellet boilers is completely maintenance-free.

Conclusion: Wood pellets are the convenient way to heat with wood!

Reason no.


Compact storage

Pellets require only half as much space as logs and only a quarter of that for wood chip. A year‘s supply for a modern detached house can be stored in an area of approx. 4 m².

Conclusion: Wood pellets are a genuine space miracle!
More information in the ÖkoFEN pellet lexicon


"As you make your bed, so must you lie in it", says an old German proverb – and preferably dry. The same applies to pellets. Here you can find valuable tips on the optimum storage requirements for pellets. By the way, don't forget to reorder punctually!

Where is the best place to store pellets?

Wood pellets must be stored in dry and clean conditions. Normal cellars meet most of these requirements. However, silos and Flexi tanks are also suitable storage spaces. If these tanks are situated outdoors, they must be protected from moisture and UV radiation.


IMPORTANT: The pellet tanker is equipped with a pump hose of up to 30 m in length. The storage room (and its filling coupling) should therefore be located no further than 30 metres from the driveway.

What is the best way to store pellets?

Wood pellets must be stored in rooms (cellars) or halls, which are enclosed on all sides. The best place for them to lie is on clean concrete or asphalt. Silos and Flexi tanks are also suitable storage spaces. If these tanks are situated outdoors, they must be protected from moisture and UV radiation.

How much space do I need?

The little "energy bombs" need relatively little storage space: 1 tonne requires a storage volume of approximately 1.5 m³. The following practical rule of thumb applies: 1 kW of heat load = 400 kg annual requirement = 0.9 m³ storage space.


Example: Detached house with a heat load of 10 kW = 4000 kg annual wood pellet requirement = 9 m³ storage space = 2 m x 2 m floor area with a ceiling height of 2.3 m.

Safety warnings

When filling the pellet store, it is important that the fill connector has no right angles. Since the pellets are blown in, a sudden change in direction can break them up.

Protective mats in the store help cushion pellet impact. Since 1 October 2012, ÖNORM M 7137 applies.Here are a few key points for a correctly designed pellet storage room:

  • Fire-resistant design REI 90
  • Wall thickness min. 12 cm (or 17 cm breeze blocks), rendered on both sides, or 10 cm concrete
  • Protected from water, moisture and dust
  • Access: min. 3 m wide, 4 m high, permissible laden weight 24 t
  • Delivery head max. 6 m
  • Fill line max. 30 m
  • Fill connector near outside wall and easily accessible
  • No electrical installations in storage room
  • Sloping floor 40° to 45° and smooth surface
  • Deflector mat opposite blow-in connector

ÖNORM M 7137 also advises ventilating the pellet store adequately. This can take place via the air slots in the fill connector cover.

© ÖkoFEN 2012

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