[columbia1]

It all depends on your individual pit, some pits are more efficient than others. On my pit once the firebox is warmed-up I can add two cold large logs easily without producing white smoke, but my firebox is large and always has a nice bed of coals in the bottom. The most important thing is too make sure your freshly added wood catches fire immediately. Easiest way to acomplish this is too leave the firebox door open for a couple of minutes. If you have flames, odds are you will not have white smoke!