Wind down the air and these are sure to stay in overnight. Ruf bark briquettes have extremely long burning time up to 10-16 hours. That is not to say you can come down next morning, give them a poke and they burst into flames, rather that there is still a good warmth in the stove and a glow from the ashes. Bark does produce extra ash, more ash creates a bigger heat store, but also more ash to dispose of the next day.

Description
• Combusting temperature: 4200Kcal/kg • Moisture: around 10% • Ash content : around 4% • Mechanical durability: 95% • Partly destroyed briquettes: 14% • Size : 155 x 110 x 65 mm • Packaging: 12 blocks weigths around 12 kg, 84 packs on pallet