begreen nailed it. A big trick with this stove is to get the top of the fire going to heat the baffle. I try and load in such a way that their is at least some path that the flames can take to reach the top. If not the baffle will of course eventually get hot enough for the secondary's to lite off but on a cold start getting flames to the top is key. Love this stove though. Reloaded a couple nights ago with a typical load of spruce and birch at 1930 and due to an early morning rise and run I did not have time to get back to the stove until about 1030 the next morning. Very happy to find the stove top at 300 and a excellent bed of red hot coals just waiting for a reload. Have super dry wood was also a big factor as well of course.