We have recently installed a solid fuel fire. What is the best fuel to use logs or coal, or are there any other eco alternatives?
They are both fake, and made of pretty much the same stuff. So the choice is yours. Logs are usually the choice, and the number of logs options out there far exceeds the number of coal options. But if you see something in coal that really grabs you, and if it is otherwise okay, go with that one.
Come back here if you have more questions.