Later I will make an Advanced Burning Box, I guess I can use the Mode Selector Cover on that one to make the Fuel usage adjustable, so this could work.
But yeah it being way more cumbersome is a great general Nerf to the System compared to just using electricity, especially with it being so much more efficient to just directly use Rotation Energy (like you can already do, but that requires ugly looking redundant Setups).
Btw you can use Shutter Covers to detach Axles from each other (has to be placed on the Axle itself). This might be helpful if you want to switch from charging your Batteries with the Dynamo, to powering a Sluice Juice Centrifuge or a Shredder with the overflow power, without having to cool down your perpetually running Boiler.