Hi From my side, where wood is plentiful especially after the recent storms, we are careful about moisture content in the same way as your paper bricks -smoke, creosote heating value etc.
I also am very aware of this in forest fire-fighting as fuel moisture content measurement can be a life/death variable.
If I can presume to extrapolate our most common firewood (red gum -heavy and dense - to paper bricks the figures look something like this;
The green wood is 45 - 50% moisture, best burning water content is 12% which means it must drop 76% of its moisture in order to release the majority of its stored energy as heat. If your bricks start at a higher water content (say 65%)then you need to get nearly 82% of that water out before they are an efficient fuel. So, at a wild comparison, every 1% moisture you have in your bricks will reduce its efficiency by 0.5%.
If using damp bricks, you will probably get better calorific value from standing in front of the heater throwing handfuls of dry shredded paper into it.
There are not more than five primary colours, yet in combination they produce more hues than can ever be seen - (Sun Tzu 600BC)