Procurement guide · Revised 7 October 2026
Basis and method
Ask whether ash is reported on a dry or as-received basis. Compare like with like and retain the test method with each value.
Ash quantity and ash behaviour
Ash content helps assess the amount of residue to manage. Ash composition and melting behaviour address different questions. Low ash alone is not a guarantee against deposits or clinker.
From report to trial
Discuss the grate, combustion temperature, air control and ash-removal system with the equipment provider. Agree a supervised trial and an observation record before committing to a new fuel.
These are purchasing considerations, not a WoodPelletCN batch specification or equipment approval. Discuss final requirements with your laboratory and equipment provider.
Further reference: ISO 17225-2: graded wood pellets · ISO 17225-6: graded non-woody pellets.