wood issue when smoking

I apologize at the outset if this is something so simple. Every time I use my offset smoker (Char Grill cheapo--looking at getting an Oklahoma Joes possibly--but may have same issues with gaps) I put hardwood lump charcaol in the offset box (minion method) and the temps are right on. I try and just lay the apple (or any flavor) wood chunks on the egde, but they inherintly always just catch fire--leading to a full white smoke and quick disposal of the chunks.



Is there a another method to keep them from burning immdeiately? I see some of you put them in foil--does that allow them to produce smoke? Is there a basket or container i can set in another place?



Any advice would be appreciated.