Shredded paper

[ina]

with oil ? not very eco ....

Old chip fat?

[Jove]

oooh, I tought you referred to motor oil yep, why not give it a try ? Every time you'll burn one of those you will find yourself in a fish&chips shop

[doofaloofa]

veg oil

Spent chip fat etc

(don't judge me!!!)

[Jove]

I surely will give it a try as well (It was not my intention to judge )

[Green Aura]

Don't worry Jove, you'll soon get used to doofa's sense of humour.

[Weedo]

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.