Last night we started the stove from a cold, COLD start. As in, the stove wasn't used for over 12 hours, so it was room temperature. The thermostat read 62F degrees inside and the outside temp was about 29F. We started up the fire (using my free Super Cedar samples Thank you Super Cedars and Hearth.com!) using the same wood as always. We didn't change anything or do anything differently. The problem is that usually my secondaries will kick in with authority around 350 and about 10-15 minutes of burn time. Several times they kicked in when the top of the firebox was awash with flame after packing the stove full of a fresh supply of wood, but after turning down the primary, they died instantly. For about 20 minutes my front-most secondary tube was literally glowing red hot, but there was still NO secondary burn from the two rear tubes, and that was where a great deal of heat was coming from. The flames were licking the tubes themselves, but nothing. What happened was after much consternation and bewilderment on my part, I brought the stove up to 400F using the ash door (I know, I know... :-S ), then after about 5-10 minutes and throwing in a Rutland Kwik-Shot Soot Stopper in case I had extra creosote build up, very reluctantly my secondaries started going and very lazily at that. It took me about another 1/2 hour of playing and waiting to establish a good secondary burn before I felt comfortable enough to leave it for the night. I was concerned that perhaps my secondary air is blocked...? I have no idea how that could have happened though. This stove is only about a month and a half old, so I can't imagine there is something wrong with it already. This has got me stumped! I'm rather concerned, naturally, since I don't want something to be plugged up and cause serious problems. It's going to be 60 today, so I don't have to fire it. I'm afraid to burn it unattended if this condition persists. Any ideas would be appreciated!