Hi Kevin, here is the problem with trying to figure fuel mileage of any type of fuel. And that is the driving habits of who’s driving. Are you a lead foot as they say, you have to put the petal to the floor all the time. Or are you a easy goes it type of person, accelerates slowly and is in no hurry to get there fast.
Yes these are extreme examples. But very true.
Now let’s talk about the design of your gasifier, this makes all the difference also.
Now let’s talk about weather conditions, and here we are again this enters in new factors to the equations of trying to calculate how much per mile.
The last of all, type of fuel and how it was prepared, what size, how much moisture content, hardness of the wood.
What I am getting at is this, in my to gasifiers, one wood and one charcoal I just do not know, it seems to be always changing on my units. When my hopper starts to heat up it’s time to put wood in it, unless it is forming a bridge in there. Just to many variables for me to give a correct answer. The arm chair people have the math to use. But it might not be right in every driving conditions.