My original idea does not cool the gas at first at all! Take raw gas from the cyclone, cool to ~100-120c and pass trugh the paper filter. Then, cool, condense, run trugh the engine compartment cyclones to expel the participated moisture and to the engine.
This shuld allso be the fastest startup way, at gas from the cyclone shuld reach 100c faster thain heating the whole gas reheating mantel can be possible. Thods?
First, l will go the easyest, and allso safest way and work from there. I will pass the gas stright from the cyclone to the coolers. Then, cold and driping wer/foggy, send trugh a open cell foam filter, similar to yours on the Audi, where all the soot shuld combine with the fog in form of bigger sooty droplets. Those will now pass two final high velocity cyclones, wich will extract all the sooty droplets. After that, a slight reheat and stright to the engine.
This way is safest too, becouse this way there is no woodgas danger related things in the inclosed trunk, except the hopper.
If this lets too much soot trugh, l will be forced to go your way, building a reheat mantel and filter, in the trunk. Or, try out my original idea, allso, in the trunk.
Can you explain what you ment with the sootbag?
As for rinsing the cooler, it has become a routine to wash the cooler and the car every Sunday when l had the Checvy, so thats a reasonable interval for me as such.