Can someone tell me the difference between a "genesis style" rba and a kaifun style? I've read several places that Genesis style are much more difficult to build, but I've never heard why exactly.
A genesis has the tank below the deck. Similar to a dripper with a tank under it. A wick goes from the coil down into the tank. The tank is sealed except for the wick hole. You need to keep it upright or it can leak. You may need to tilt the tank to keep the liquid close to the wick hole to keep the coil feed.
A kayfun has the tank above the deck and works like a clearomizer only with a deck and replaceable coil and wick.