The briquettes produce good flame during the first 30 minutes of burning and then glowed for over 2.5 hours giving a steady heat until reduction to a small amount of grey ash residue. Total heat release time was reported at over 3 hours.
Use recommendations: A minimum of three briquettes should be loaded at any given time. Because they burn much hotter than logs and expand slightly in the fire, it is important not to overload your fire box. Heat release time in different appliances will depend on air inflow setting, number of briquettes loaded, outside temperature, and size of appliance and can range anywhere from 1 hour to over 4 hours.
Product details:
Darker wood colour;
Made of 100  virgin Pine & Spruce wood sawdust;
Each briquette measures approximately 65 x 65 x 230 mm;
Delivery is contracted to kerbside only. This means the nearest point to your property that is hard, flat and at street level. Delivered by 18 tonne vehicle due to heavy weight. Delivery not possible to grass, gravel, broken pavement, over inclines or raised/dropped kerbs. Access required 3m width, 4m unobstructed vertical clearance, with either a through way or sufficient turning space for a vehicle 11m long.