Bristol Eco Logs supply and delivery eco friendly wood briquettes for fires, stoves, chimineas and BBQ's to your door.Bristol Eco Log briquettes are made from waste produces by the timber industry. Hardwood sawdust and wood shavings (and nothing else) are compacted into Eco Logs under very high pressure.Bristol Eco Log briquettes contain a lot less moisture and have a much higher calorific value than normal logs so they give of 2-3 times more heat than normal logs.