CardCIRCLES are classed as biomass originating from renewable forests that provide pine timber pulp. They are made from shredded and compressed dry cardboard and have a zero carbon footprint.
| Content |
| Fixed carbon |
9.9% |
| Volatile matter |
70.3% |
| Ash content |
9.3% |
| Moisture content |
10.4% |
| Sulphur content |
0.1% |
|
100.0% |
Gross Calorific Value 15220 kJ/kg (3636 Cals/g). This heat output is similar to dry softwood air dried for more than 2 years.
CardCIRCLES burn cleanly to soft ash that can be easily composted or spread on the garden.
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