Currently we are drying batches of different mixes of paper card and wood to find which is the best in terms of burning. Obviously burn time, heat, and total energy are all factors.
Test 6 will see him in the chemistry lab analysing samples for energy content
Test 7 will be a more subjective test in a stove looking at burn time and heat output (using a laser heat gun)
Test 8 will look at how the hole in the middle affects burning
Given the amount of blocks we are drying it will be a few weeks until I can post the results of these....
Please add any advice or experiences - it will all get passed on to the lad and is extra research he can add to his portfolio