45 minutes.... Is it moist or wet? Moldy perhaps? The dryer the better. If it can be warmed before putting on the fire, that's good too. I actually use the warmer on mine to warm the wood before putting it on the fire. It really helps go from white to sweet blue very fast. Also, is it a split or a chunk? To a degree, the smaller the better. If a split (which I use), smaller/thinner splits are better.
Also, you may be smothering your fire. When putting new wood on, do it one piece at a time.
Hance - Lake Dogs Cooking Team - MiM/MBN/GBA CBJ and comp cook
Lake Sinclair, GA (strategically about an hour from everywhere)